Audi RS6 C6 V10 5.0 TFSI (BUH)

Experiencing Stock to Stage 1 power for the first time always puts a smile on the customers face, finally the car is tuned to its true potential and feels like it should. Our Stage 1 Audi tuning package for the Audi RS6 C6 V10 5.0 TFSI (BUH) truly delivers impressive power gains, boosting power output as much as 20% over stock and torque by 40%.

Stage 1 tuning of a car refers to a set of modifications that enhance the vehicle’s performance, typically without requiring significant changes to its internal components or a lot of downtime. It gains a noticeable increase in power and driving experience without going overboard with complex upgrades.

Here’s a breakdown of what the MRC Stage 1 Package for the Audi RS6 C6 V10 5.0 TFSI (BUH) includes:

• In-house developed MRC ECU Stage 1 Remap

The most common part of Stage 1 tuning is adjusting the car’s Engine Control Unit (ECU), which governs the performance parameter settings like air-fuel mixture, ignition timing, and boost levels. This Stage 1 remap is the culmination of months of dedicated work by our highly skilled engineers at MRC Tuning working on a bespoke tune that will optimize these settings to increase power output, torque, and fuel efficiency without requiring any mechanical changes. This is the most cost-effective and non-invasive method to improve performance whilst staying extremely safe but usually producing more power and torque than our competitors whilst maintaining a safe tune.

• Upgraded Air filter

Upgrading to a high-flow air filter or a performance intake system helps the engine get more air, leading to better combustion and more power.
A better intake allows the engine to breathe more freely, improving throttle response and overall performance.

Booking information

• • We would require a non refundable deposit of £150 to secure your booking, and would require the car to be with us for a couple of hours to carry out the work.

Please read our frequently asked questions at the bottom of this page to see if it answers any other questions you may have.

Stage 2 tuning of a car refers to hardware adjustments like upgraded or larger intercoolers, downpipes, or intake/exhaust modifications. Stage 1 to Stage 2 power will only usually boost power output by not only 25-27% but also the torque figures will increase by up to 65% which is a noticeable improvement that you can feel.

Here’s a breakdown of what the MRC Stage 2 Package for the Audi RS6 C6 V10 5.0 TFSI (BUH) includes:

• In-house developed MRC ECU Stage 2 Remap

Building on the Stage 1 tuning package of the ECU this Stage 2 remap will take advantage of the extra hardware upgrades with a more bespoke tune that will optimize the power output and torque whilst staying extremely safe.

• Gearbox Tune

Tuning a Transmission Control Unit (TCU) refers to modifying the software that controls the automatic transmission in a vehicle. The TCU is responsible for shifting gears, controlling torque delivery, and optimizing the performance of the transmission. Just like with engine tuning (ECU), TCU tuning can enhance driving dynamics, performance, and efficiency.

• Upgraded Air filter

Upgrading to a high-flow air filter or a performance intake system helps the engine get more air, leading to better combustion and more power.
A better intake allows the engine to breathe more freely, improving throttle response and overall performance.

• Exhaust modifications

Removal of secondary elements provide greater increases in horsepower and torque on turbocharged vehicles by allowing exhaust gasses to flow easier as they leave the turbo.

• Optional Full exhaust kit

The full exhaust will provide greater increases in horsepower and torque on turbocharged vehicles by allowing exhaust gasses to flow easier as they leave the turbo and the tune can be increased to take advantage of the extra breathing.

Booking information

• • Stage 2 – We would require a non refundable deposit of £150 to secure the booking, and for the car to be left with us for 3-5 hours to carry out the work.
  • Stage 2 + Full exhaust fitting – We would require a non refundable deposit of £2,000 to secure parts and booking and for the car to be dropped off and left with us for 2-4 workings days.

Please read our frequently asked questions at the bottom of this page to see if it answers any other questions you may have.

• This Includes the secondary cat delete

• This Includes the secondary cat delete & Includes a full Milltek exhaust system.

Stage 3 is at your own risk. We will map the car to be as safe and powerful as it can be but increasing the power and torque so far beyond the factory specification means it will need appropriately reduced service intervals and maintenance.

Stage 3 tuning of a car refers to hardware adjustments like upgraded turbochargers plus larger intercoolers, downpipes, or intake/exhaust modifications. Stage 2 to Stage 3 power will usually boost power output by not only 50% but also the torque figures will increase by up to 65% which is a noticeable improvement that you can feel.

Here’s a breakdown of what the MRC Stage 3 Package for the Audi RS6 C6 V10 5.0 TFSI (BUH) includes:

• In-house developed MRC ECU Stage 3 Remap

Building on the Stage 2 tuning package of the ECU this Stage 3 remap will take advantage of the extra hardware upgrades with a more bespoke tune that will optimize the power output and torque whilst staying extremely safe.

• Upgraded Gearbox + Tune

The physical gearbox will need to be upgraded to cope with the extreme power and torque of this package.

• Water Meth injection kit (WM)

By injecting water-meth into the intake, it lowers the combustion temperature and helps prevent knocking. This is especially important in high-boost applications (turbocharged or supercharged engines), where the combustion temperature can rise, leading to detonation so cooling the intake air and maximizing power output are critical.

• Upgraded Air filter

Upgrading to a high-flow air filter or a performance intake system helps the engine get more air, leading to better combustion and more power.
A better intake allows the engine to breathe more freely, improving throttle response and overall performance.

• Full exhaust kit

The full exhaust will provide greater increases in horsepower and torque on turbocharged vehicles by allowing exhaust gasses to flow easier as they leave the turbo and the tune can be increased to take advantage of the extra breathing.

• Upgraded Intercoolers

Fitting a larger and more efficient intercoolers helps maintain lower intake temperatures, preventing heat-induced power loss and ensuring consistent performance.

Booking information

• • We would require a non refundable deposit of £5,000 to secure your parts and booking and for your car to be dropped off and left with us, time lead time would vary depending on when your gearbox would be delivered back to us, this could take anywhere between 4-8 weeks.

Please read our frequently asked questions at the bottom of this page to see if it answers any other questions you may have.