{"id":2360,"date":"2023-07-06T23:11:45","date_gmt":"2023-07-06T23:11:45","guid":{"rendered":"https:\/\/mrctuning.com\/site\/?page_id=2360"},"modified":"2025-10-23T09:36:44","modified_gmt":"2025-10-23T09:36:44","slug":"rs4-rs5-b8-4-2-fsi-8k-8t3","status":"publish","type":"page","link":"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/","title":{"rendered":"Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA)"},"content":{"rendered":"<div class=\"fusion-bg-parallax\" data-bg-align=\"center center\" data-direction=\"down\" data-mute=\"false\" data-opacity=\"100\" data-velocity=\"-0.3\" data-mobile-enabled=\"false\" data-break_parents=\"0\" data-bg-image=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2023\/07\/B8_42LFSI_ENGINE.jpg\" data-bg-repeat=\"false\" ><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container fusion-parallax-down nonhundred-percent-fullwidth non-hundred-percent-height-scrolling fusion-custom-z-index\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-z-index:0;--awb-padding-bottom:85px;--awb-margin-top:0px;--awb-background-image:url(&quot;https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2023\/07\/B8_42LFSI_ENGINE.jpg&quot;);--awb-background-size:cover;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:71px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"--awb-text-color:#ffffff;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:82.5;line-height:1.16;\">Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA)<\/h1><\/div><div class=\"fusion-text fusion-text-1\"><h5 class=\"\" style=\"--fontsize: 22.5; line-height: 1.4;\" data-fontsize=\"22.5\" data-lineheight=\"31.5px\"><span style=\"color: #ffffff;\">AUDI RS4 (8K) RS5 (8T3) 2010-2015 <span style=\"font-weight: normal;\">ENGINE CODES &#8211; <\/span>CFSA<br \/>\n<span style=\"font-weight: normal;\">STOCK POWER &#8211; <\/span>450PS <span style=\"font-weight: normal;\">STOCK TORQUE &#8211; <\/span>430NM<\/span><\/h5>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-section-separator section-separator triangle fusion-section-separator-1\" style=\"--awb-border-top:1px solid var(--awb-color3);--awb-spacer-height:1px;--awb-svg-margin-left:1.92%;--awb-svg-margin-right:1.92%;--awb-svg-margin-left-medium:1.92%;--awb-svg-margin-right-medium:1.92%;--awb-svg-margin-left-small:1.92%;--awb-svg-margin-right-small:1.92%;--awb-icon-color:var(--awb-color1);\"><div class=\"fusion-section-separator-svg\"><div class=\"divider-candy-arrow top\" style=\"bottom:0px;border-bottom-color: var(--awb-color2);\"><\/div><div class=\"divider-candy top\" style=\"top:-21px;border-bottom:1px solid var(--awb-color3);border-left:1px solid var(--awb-color3);\"><\/div><\/div><div class=\"fusion-section-separator-spacer\"><div class=\"fusion-section-separator-spacer-height\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-image-element \" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"1000\" height=\"749\" alt=\"Audi RS5 B8 ECU remap on the dyno - from MRC the experts in Audi tuning\" title=\"Audi-RS5-B8-on-the-dyno-being-remapped\" src=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/Audi-RS5-B8-on-the-dyno-being-remapped.jpg\" class=\"img-responsive wp-image-3227\" srcset=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/Audi-RS5-B8-on-the-dyno-being-remapped-200x150.jpg 200w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/Audi-RS5-B8-on-the-dyno-being-remapped-400x300.jpg 400w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/Audi-RS5-B8-on-the-dyno-being-remapped-600x449.jpg 600w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/Audi-RS5-B8-on-the-dyno-being-remapped-800x599.jpg 800w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/Audi-RS5-B8-on-the-dyno-being-remapped.jpg 1000w\" sizes=\"(max-width: 700px) 100vw, 1000px\" \/><\/span><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-reading-box-container reading-box-container-1\" style=\"--awb-title-color:#000000;--awb-margin-top:0px;--awb-margin-bottom:20px;\"><div class=\"reading-box\" style=\"background-color:var(--awb-color2);border-width:1px;border-color:rgba(226,226,226,0);border-left-width:3px;border-left-color:var(--primary_color);border-style:solid;\"><h2>The RS4 and RS5 B8 Introduced in 2012, retained the same 4.2-litre V8 from the B7, but output increased to 450ps. Torque remained at 317lb-ft, but crucially, it arrived 1,500rpm sooner \u2013 at 4,000rpm \u2013 and was sustained to 6,000rpm<\/h2><div class=\"reading-box-description fusion-reading-box-additional\">The RS4 and RS5 could accelerate from 0 to 100\u00a0km\/h (62\u00a0mph) in 4.7 seconds, and achieve a maximum speed of 250\u00a0km\/h (155\u00a0mph) (electronically restricted)<\/div><div class=\"reading-box-additional\">\n<hr \/>\n<p><strong>Engine Specs:<\/strong><\/p>\n<ul>\n<li data-start=\"138\" data-end=\"202\"><strong data-start=\"138\" data-end=\"147\">Type:<\/strong> 4.2 L V8 FSI (Naturally Aspirated, Direct Injection)<\/li>\n<li data-start=\"205\" data-end=\"254\"><strong data-start=\"205\" data-end=\"215\">Power:<\/strong> 450 PS (444 hp \/ 331 kW) @ 8,250 rpm<\/li>\n<li data-start=\"257\" data-end=\"307\"><strong data-start=\"257\" data-end=\"268\">Torque:<\/strong> 430 Nm (317 lb-ft) @ 4,000\u20136,000 rpm<\/li>\n<li data-start=\"310\" data-end=\"334\"><strong data-start=\"310\" data-end=\"322\">Redline:<\/strong> 8,500 rpm<\/li>\n<li data-start=\"337\" data-end=\"409\"><strong data-start=\"337\" data-end=\"354\">Transmission:<\/strong> 7-speed dual-clutch S-tronic only (no manual option)<\/li>\n<\/ul>\n<h4 class=\"fusion-responsive-typography-calculated\" data-start=\"315\" data-end=\"361\" data-fontsize=\"32\" data-lineheight=\"43.52px\"><strong data-start=\"322\" data-end=\"361\">Carbon Build-Up on Intake Valves<\/strong><\/h4>\n<p>The B8 has <em data-start=\"715\" data-end=\"729\">Advanced FSI<\/em> with <strong data-start=\"735\" data-end=\"781\">improved injector design and spray pattern<\/strong>, still direct only (no port injection) but still suffers from Carbon Build up:<\/p>\n<p data-start=\"362\" data-end=\"650\"><strong data-start=\"362\" data-end=\"372\">Cause:<\/strong> The CFSA uses the same type of <strong data-start=\"393\" data-end=\"424\">direct fuel injection (FSI) <\/strong><a href=\"https:\/\/mrctuning.com\/site\/rs4-b7-4-2-v8-fsi\/\">as the BNS engine of the RS4 B7<\/a>, which sprays fuel directly into the combustion chamber instead of over the intake valves. Without fuel washing over the valves, oil vapor and blow-by gases from the PCV system deposit carbon on the intake ports and valves &#8211; <strong>we can carbon clean using our walnut blasting machine <\/strong>restoring the engine to its original performance &#8211; then adding Stage 2 parts upgrade and tune for more power and torque.<\/p>\n<p data-start=\"652\" data-end=\"665\"><strong data-start=\"652\" data-end=\"665\">Symptoms:<\/strong><\/p>\n<ul>\n<li data-start=\"668\" data-end=\"706\">Loss of power (often 20\u201340 hp or more)<\/li>\n<li data-start=\"709\" data-end=\"731\">Rough idle or misfires<\/li>\n<li data-start=\"734\" data-end=\"755\">Hesitation under load<\/li>\n<li data-start=\"758\" data-end=\"775\">Poor fuel economy<\/li>\n<\/ul>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-bg-parallax\" data-bg-align=\"center center\" data-direction=\"up\" data-mute=\"false\" data-opacity=\"100\" data-velocity=\"-0.3\" data-mobile-enabled=\"true\" data-break_parents=\"0\" data-bg-image=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/10\/AUDI-RS4-B8-Tiptronic-transmission.jpg\" data-bg-repeat=\"false\" ><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-4 fusion-flex-container has-pattern-background has-mask-background fusion-parallax-up nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:150px;--awb-background-image:url(&quot;https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/10\/AUDI-RS4-B8-Tiptronic-transmission.jpg&quot;);--awb-background-size:cover;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-5 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-section-separator section-separator triangle fusion-section-separator-2\" style=\"--awb-border-top:1px solid var(--awb-color3);--awb-spacer-height:1px;--awb-svg-margin-left:1.92%;--awb-svg-margin-right:1.92%;--awb-svg-margin-left-medium:1.92%;--awb-svg-margin-right-medium:1.92%;--awb-svg-margin-left-small:1.92%;--awb-svg-margin-right-small:1.92%;--awb-icon-color:var(--awb-color1);\"><div class=\"fusion-section-separator-svg\"><div class=\"divider-candy-arrow top\" style=\"bottom:0px;border-bottom-color: var(--awb-color2);\"><\/div><div class=\"divider-candy top\" style=\"top:-21px;border-bottom:1px solid var(--awb-color3);border-left:1px solid var(--awb-color3);\"><\/div><\/div><div class=\"fusion-section-separator-spacer\"><div class=\"fusion-section-separator-spacer-height\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-6 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:50px;--awb-margin-top:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-6 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-bottom:10px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:1.2;\"><strong>STAGE 2 Package Details:<\/strong><\/h2><\/div><div class=\"fusion-separator\" style=\"align-self: flex-start;margin-right:auto;margin-top:10px;margin-bottom:30px;width:100%;max-width:80px;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:#8097ba;border-color:#8097ba;border-top-width:3px;\"><\/div><\/div><div class=\"fusion-text fusion-text-2\"><p><strong>Power Figures obtained are depending on the carbon build up inside the engine components.<\/strong><\/p>\n<div class=\"fusion-text fusion-text-2\">\n<p>We would require a non refundable deposit of \u00a3150 to secure the booking. We would require the car to be with us for 3-5 working days to carry out the work. Please make sure your car arrives with at least half a tank of fuel and is always run on the best fuel, which in the UK is Tesco 99<\/p>\n<p><strong>Injectors are becoming a common issue on the B7\/B8 models,<\/strong>\u00a0we do recommend having them removed and replaced for the latest revision, especially if the car is above 80k miles. We do also offer testing and cleaning. Please note that we have come across injectors being seized in place, this could lead to further time being spent on removal as well as the injector(s) having to be replaced\u00a0\u2013\u00a0<strong><a href=\"https:\/\/mrctuning.com\/site\/servicing\/#injectors\">for more information about injector cleaning click here<\/a>.<\/strong><\/p>\n<p>When checking and cleaning Injectors they should always be flow matched to be within 1% of each other, depending on your results will depend on if we can re-use or if we have to replace them. If you would like this to be priced up please let us know so we can adjust your estimate to suit.<\/p>\n<p><strong>If the intakes are built up with carbon we would notice when we dyno the car by the airflow we would recommend Carbon cleaning.<\/strong><\/p>\n<\/div>\n<div class=\"fusion-text fusion-text-3\">\n<p>Please read our\u00a0<a href=\"https:\/\/mrctuning.com\/site\/rs4-b7-4-2-v8-fsi\/#FAQ\">frequently asked questions<\/a> at the bottom of this page to see if it answers any other questions you may have.<\/p>\n<\/div>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-7 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-bottom:10px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:1.2;\"><strong>STAGE 2 Remap and Carbon clean : <\/strong><span style=\"color: var(--awb-text-color); font-family: var(--h2_typography-font-family); font-size: 1em; font-style: var(--h2_typography-font-style,normal); letter-spacing: var(--h2_typography-letter-spacing); text-transform: var(--h2_typography-text-transform); background-color: var(--awb-bg-color-hover); font-weight: normal;\">You should see <\/span>around <strong>450-460ps 450-500nm<\/strong><\/h2><\/div><div ><a class=\"fusion-button button-flat button-xlarge button-custom fusion-button-default button-1 fusion-button-default-span fusion-button-default-type fusion-has-button-gradient\" style=\"--button_accent_color:var(--awb-color1);--button_accent_hover_color:var(--awb-color1);--button_border_hover_color:var(--awb-color1);--button_gradient_top_color:#ea3a00;--button_gradient_bottom_color:#7c0000;--button_gradient_top_color_hover:hsla(var(--awb-color5-h),calc(var(--awb-color5-s) - 5%),calc(var(--awb-color5-l) - 10%),var(--awb-color5-a));--button_gradient_bottom_color_hover:hsla(var(--awb-color5-h),calc(var(--awb-color5-s) - 5%),calc(var(--awb-color5-l) - 10%),var(--awb-color5-a));\" target=\"_self\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">PRICES FROM &#8211; \u00a33,038.94 INC VAT<\/span><\/a><\/div><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-bottom:10px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:1.2;\"><strong>STAGE 2 Dyno Plot<\/strong><\/h2><\/div><div class=\"fusion-image-element \" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-2 hover-type-none\"><a href=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/MRC-B8-RS4-CC-INJECTORS.png\" class=\"fusion-lightbox\" data-rel=\"iLightbox[5c1b3d4dcca3f8b5e94]\" data-title=\"MRC B8 RS4 CC INJECTORS\" title=\"MRC B8 RS4 CC INJECTORS\"><img decoding=\"async\" width=\"1976\" height=\"1111\" alt=\"MRC B8 RS4 carbon clean and stage 2 remap dyno plot\" src=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/MRC-B8-RS4-CC-INJECTORS.png\" class=\"img-responsive wp-image-3216\" srcset=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/MRC-B8-RS4-CC-INJECTORS-200x112.png 200w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/MRC-B8-RS4-CC-INJECTORS-400x225.png 400w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/MRC-B8-RS4-CC-INJECTORS-600x337.png 600w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/MRC-B8-RS4-CC-INJECTORS-800x450.png 800w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/MRC-B8-RS4-CC-INJECTORS-1200x675.png 1200w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/02\/MRC-B8-RS4-CC-INJECTORS.png 1976w\" sizes=\"(max-width: 700px) 100vw, 1200px\" \/><\/a><\/span><\/div><div class=\"fusion-title title fusion-title-5 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-bottom:10px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:1.2;\"><strong>STAGE 2 Dyno Video<\/strong><\/h2><\/div><div class=\"fusion-video fusion-youtube\" style=\"--awb-max-width:600px;--awb-max-height:360px;\"><div class=\"video-shortcode\"><lite-youtube videoid=\"s9wWzHDAcDk\" class=\"landscape\" params=\"wmode=transparent&autoplay=1&amp;enablejsapi=1\" title=\"YouTube video player 1\" data-button-label=\"Play Video\" width=\"600\" height=\"360\" data-thumbnail-size=\"auto\" data-no-cookie=\"on\"><\/lite-youtube><\/div><\/div><div class=\"fusion-title title fusion-title-6 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-bottom:10px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:1.2;\"><strong>STAGE 2 Custom exhaust &#8211; Dyno Video<\/strong><\/h2><\/div><div class=\"fusion-video fusion-youtube\" style=\"--awb-max-width:600px;--awb-max-height:360px;\"><div class=\"video-shortcode\"><lite-youtube videoid=\"n5pgu83zwvk\" class=\"landscape\" params=\"wmode=transparent&autoplay=1&amp;enablejsapi=1\" title=\"YouTube video player 2\" data-button-label=\"Play Video\" width=\"600\" height=\"360\" data-thumbnail-size=\"auto\" data-no-cookie=\"on\"><\/lite-youtube><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-8 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><\/div><\/div><\/div><\/div><div class=\"fusion-bg-parallax\" data-bg-align=\"center center\" data-direction=\"up\" data-mute=\"false\" data-opacity=\"100\" data-velocity=\"-0.3\" data-mobile-enabled=\"true\" data-break_parents=\"0\" data-bg-image=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/10\/AUDI-RS4-B8-Rear-exhausts.jpg\" data-bg-repeat=\"false\" ><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-7 fusion-flex-container has-pattern-background has-mask-background fusion-parallax-up nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:150px;--awb-background-image:url(&quot;https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2025\/10\/AUDI-RS4-B8-Rear-exhausts.jpg&quot;);--awb-background-size:cover;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-9 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-8 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-10 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-section-separator section-separator triangle fusion-section-separator-3\" style=\"--awb-border-top:5px solid var(--awb-color3);--awb-spacer-height:5px;--awb-svg-margin-left:1.92%;--awb-svg-margin-right:1.92%;--awb-svg-margin-left-medium:1.92%;--awb-svg-margin-right-medium:1.92%;--awb-svg-margin-left-small:1.92%;--awb-svg-margin-right-small:1.92%;--awb-icon-color:var(--awb-color1);--awb-icon-top:-15px;\"><div class=\"fusion-section-separator-svg\"><div class=\"divider-candy-arrow top\" style=\"bottom:5px;border-bottom-color: var(--awb-color2);\"><\/div><div class=\"divider-candy top\" style=\"top:-25px;border-bottom:1px solid var(--awb-color3);border-left:1px solid var(--awb-color3);\"><\/div><\/div><div class=\"fusion-section-separator-spacer\"><div class=\"fusion-section-separator-spacer-height\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-9 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-center fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"max-width:93.6%;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-11 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:30px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"--awb-height:20px;--awb-amount:20px;border-color:var(--awb-color3);border-top-width:1px;border-bottom-width:1px;\"><\/div><\/div><div class=\"fusion-title title fusion-title-7 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-bottom:10px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:1.2;\">Frequently Asked Questions<\/h2><\/div><div class=\"fusion-separator\" style=\"align-self: flex-start;margin-right:auto;margin-top:10px;margin-bottom:30px;width:100%;max-width:80px;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:#e20b0b;border-color:#e20b0b;border-top-width:3px;\"><\/div><\/div><div class=\"fusion-title title fusion-title-8 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:#ce1a26;--awb-margin-top:0px;--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;--awb-font-size:1.1em;\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;letter-spacing:1px;font-size:1em;--fontSize:16.5;--minFontSize:16.5;line-height:1.3;\">Please check the below questions to see if it answers your query before ringing the office<\/h3><\/div><div class=\"fusion-text fusion-text-3\"><p><strong>Bookings<\/strong><\/p>\n<p>We require non refundable deposits for all bookings made, if you\u2019re more than half an hour late, try to rearrange within 48 hours or do not show we will keep the deposit, if you are wanting to re book then another deposit will need to be taken.<\/p>\n<p><strong>We also ask that all invoices are paid by BACS before collection.<\/strong><\/p>\n<p><strong>Engine related FAQ<\/strong><\/p>\n<p>All tuned Vehicles should be ran on Audi long-life 5W40 oil.<\/p>\n<p>All 2.0L 2.5L and 4L engines should be ran on NGK race plugs once tuned.<\/p>\n<p><strong>Please let us know if service work needs to be added to your estimate<\/strong><\/p>\n<p><strong>Service Intervals:<\/strong><\/p>\n<ul>\n<li>Oil and filter change once a year or every 10k<\/li>\n<li>Major engine service every 2 years or every 20k<\/li>\n<li>Transmission (gearbox, haldex, diffs, transfer box) should be done every 3-4 years, every 35k\n<ul>\n<li><strong>Depending on how the car is driven, if the car is driven hard\/ abused etc then these intervals should be cut in half.<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Fuel<\/strong><\/p>\n<p>Please make sure your car arrives with at least half a tank of fuel and is always run on the best fuel, either Tesco 99 Momentum or Shell Vpower<\/p>\n<p><strong>Coilpacks<\/strong><\/p>\n<p>Please be aware that old coilpacks can fail when running more power, causing a misfire, please make sure you have newest revision coilpacks before booking in, or let us know and we can add these to the estimate and replace on the day.<\/p>\n<p><strong>Labour rates<\/strong><\/p>\n<p>Our standard labour rate is charged at \u00a3119+vat<\/p>\n<\/div>\n<\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-12 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-center fusion-content-layout-row\"><div class=\"fusion-image-element \" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-3 hover-type-none\"><img decoding=\"async\" width=\"447\" height=\"503\" title=\"B8_42LFSI\" src=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2023\/07\/B8_42LFSI.jpg\" alt class=\"img-responsive wp-image-2355\" srcset=\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2023\/07\/B8_42LFSI-200x225.jpg 200w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2023\/07\/B8_42LFSI-400x450.jpg 400w, https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2023\/07\/B8_42LFSI.jpg 447w\" sizes=\"(max-width: 700px) 100vw, 447px\" \/><\/span><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"class_list":["post-2360","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA) Tuning &amp; Remapping - MRC Tuning VAG Specialists<\/title>\n<meta name=\"description\" content=\"World leaders in rolling road tuning &amp; remapping facilities for the Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA). Upto 460ps 500nm STG2\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA) Tuning &amp; Remapping - MRC Tuning VAG Specialists\" \/>\n<meta property=\"og:description\" content=\"World leaders in rolling road tuning &amp; remapping facilities for the Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA). Upto 460ps 500nm STG2\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/\" \/>\n<meta property=\"og:site_name\" content=\"MRC Tuning\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/mrctuning\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-23T09:36:44+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/\",\"url\":\"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/\",\"name\":\"Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA) Tuning & Remapping - MRC Tuning VAG Specialists\",\"isPartOf\":{\"@id\":\"https:\/\/mrctuning.com\/site\/#website\"},\"datePublished\":\"2023-07-06T23:11:45+00:00\",\"dateModified\":\"2025-10-23T09:36:44+00:00\",\"description\":\"World leaders in rolling road tuning & remapping facilities for the Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA). Upto 460ps 500nm STG2\",\"breadcrumb\":{\"@id\":\"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/mrctuning.com\/site\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/mrctuning.com\/site\/#website\",\"url\":\"https:\/\/mrctuning.com\/site\/\",\"name\":\"MRC Tuning\",\"description\":\"Custom engine management and Rolling road dyno tuning for Audi, Seat, Skoda, Volkswagen, Porsche, Lamborghini, Mercedes\",\"publisher\":{\"@id\":\"https:\/\/mrctuning.com\/site\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/mrctuning.com\/site\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/mrctuning.com\/site\/#organization\",\"name\":\"MRC Tuning LTD\",\"url\":\"https:\/\/mrctuning.com\/site\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/mrctuning.com\/site\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2021\/05\/MRC_BUSINESS_CARD_FRONT.jpg\",\"contentUrl\":\"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2021\/05\/MRC_BUSINESS_CARD_FRONT.jpg\",\"width\":1075,\"height\":720,\"caption\":\"MRC Tuning LTD\"},\"image\":{\"@id\":\"https:\/\/mrctuning.com\/site\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/mrctuning\",\"https:\/\/www.instagram.com\/mrctuningltd\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA) Tuning & Remapping - MRC Tuning VAG Specialists","description":"World leaders in rolling road tuning & remapping facilities for the Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA). Upto 460ps 500nm STG2","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/","og_locale":"en_US","og_type":"article","og_title":"Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA) Tuning & Remapping - MRC Tuning VAG Specialists","og_description":"World leaders in rolling road tuning & remapping facilities for the Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA). Upto 460ps 500nm STG2","og_url":"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/","og_site_name":"MRC Tuning","article_publisher":"https:\/\/www.facebook.com\/mrctuning","article_modified_time":"2025-10-23T09:36:44+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/","url":"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/","name":"Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA) Tuning & Remapping - MRC Tuning VAG Specialists","isPartOf":{"@id":"https:\/\/mrctuning.com\/site\/#website"},"datePublished":"2023-07-06T23:11:45+00:00","dateModified":"2025-10-23T09:36:44+00:00","description":"World leaders in rolling road tuning & remapping facilities for the Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA). Upto 460ps 500nm STG2","breadcrumb":{"@id":"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/mrctuning.com\/site\/rs4-rs5-b8-4-2-fsi-8k-8t3\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/mrctuning.com\/site\/"},{"@type":"ListItem","position":2,"name":"Audi RS4 \/ RS5 B8 V8 4.2L FSI (CFSA)"}]},{"@type":"WebSite","@id":"https:\/\/mrctuning.com\/site\/#website","url":"https:\/\/mrctuning.com\/site\/","name":"MRC Tuning","description":"Custom engine management and Rolling road dyno tuning for Audi, Seat, Skoda, Volkswagen, Porsche, Lamborghini, Mercedes","publisher":{"@id":"https:\/\/mrctuning.com\/site\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mrctuning.com\/site\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/mrctuning.com\/site\/#organization","name":"MRC Tuning LTD","url":"https:\/\/mrctuning.com\/site\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/mrctuning.com\/site\/#\/schema\/logo\/image\/","url":"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2021\/05\/MRC_BUSINESS_CARD_FRONT.jpg","contentUrl":"https:\/\/mrctuning.com\/site\/wp-content\/uploads\/2021\/05\/MRC_BUSINESS_CARD_FRONT.jpg","width":1075,"height":720,"caption":"MRC Tuning LTD"},"image":{"@id":"https:\/\/mrctuning.com\/site\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/mrctuning","https:\/\/www.instagram.com\/mrctuningltd"]}]}},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/mrctuning.com\/site\/wp-json\/wp\/v2\/pages\/2360","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mrctuning.com\/site\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mrctuning.com\/site\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mrctuning.com\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mrctuning.com\/site\/wp-json\/wp\/v2\/comments?post=2360"}],"version-history":[{"count":19,"href":"https:\/\/mrctuning.com\/site\/wp-json\/wp\/v2\/pages\/2360\/revisions"}],"predecessor-version":[{"id":3908,"href":"https:\/\/mrctuning.com\/site\/wp-json\/wp\/v2\/pages\/2360\/revisions\/3908"}],"wp:attachment":[{"href":"https:\/\/mrctuning.com\/site\/wp-json\/wp\/v2\/media?parent=2360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}