Audi S4 B5 2.7 V6 BiTURBO

Audi S4 B5 (8D) 1997-2002 ENGINE CODES – AGB | AZB
STOCK POWER – 265PS STOCK TORQUE – 400NM
AUDI S4 B5 2.7L V6 BITURBO On the Dyno for MRC ECU Remapping

The second generation S4 (Type 8D), also known as the Audi S4 quattro debuted in 1997, with factory production commencing October 1997 as part of the facelifted B5 platform Audi A4 line-up, although it was not available in North America until late 1999.

The B5 S4 claims acceleration from 0 to 100 km/h (0.0 to 62.1 mph) in 5.7 seconds, and has an electronically limited top speed of 250 km/h (155.3 mph)

The powertrain details of the B5 S4 feature a 2.7-litre twin-turbo (‘biturbo’) 90° third-generation V6 engine. The intake air is pressurized by two parallel water-cooled BorgWarner K03-series turbochargers; the charged air is cooled by two side-mounted air-to-air intercoolers (SMICs). Engine management was by way of a Bosch Motronic ME 7.1 (7.0 in North America) electronic engine control unit (ECU), and helped it meet the European EU-3D emissions standard. In all US-market cars, the engine was detuned to meet US emissions regulations; output was reduced to 184 kW (250 PS; 247 hp) and 350 N⋅m (258 lbf⋅ft) (identification code: APB).

STAGE 1 : +55-65PS +100-130nm

You should see around 320-330ps 500-530nm

We would require a non refundable deposit of £150 to secure your booking and for your car to be with us for a couple of hours 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 either Tesco 99 Momentum or Shell Vpower

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.

Please make sure you check your MAF, DV’s, F hose, throttle body hose, EGT codes as these are the usual parts to fail/ have issues

Please make sure that you mention all work you’re wanting to be carried out before booking in so that we can schedule this into the diary accordingly.

Mentioning work when you drop your car off means that we will run into delays as it was not scheduled in the diary.

MRC B5 S4 STG1 Dyno Plot

STAGE 2 : +75-105PS 

You should see around 340-370ps

We would require a non refundable deposit of £1500 to secure parts and booking, and for your car to be dropped off and left with us for 2-4 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 bets fuel, either Tesco 99 Momentum or Shell Vpower.

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.

Please make sure you check your MAF, DV’s, F hose, throttle body hose, EGT codes as these are the usual parts to fail/ have issues

If your car is being left with us, please do not collect/ or plan to collect your car unless told so, we do not want to rush the work we are carrying out on your car, we will let you know as soon as your car is finished,w e have completed our final checks and we are happy with your car.

Please make sure that you mention all work you’re wanting to be carried out before booking in so that we can schedule this into the diary accordingly.

Mentioning work when you drop your car off means that we will run into delays as it was not scheduled in the diary.

MRC B5 S4 STG2 Dyno Plot

STAGE 3 : +185-215PS 

You should see around 450-480ps

We would require a non refundable £6,000 to secure parts and booking and for the car to be dropped off and left with us for 5-10 working days.

Please make sure your car arrives with a full tank of fuel and is always run on the best fuel, either Tesco 99 Momentum or Shell Vpower

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.

Please make sure you have replaced your MAF, DV’s, F hose, throttle body hose, EGT and checked fault codes with VCDS, as these are the usual parts to fail/ have issues.

If your car is being left with us, please do not collect/ or plan to collect your car unless told so, we do not want to rush the work we are carrying out on your car, we will let you know as soon as your car is finished,w e have completed our final checks and we are happy with your car.

Please make sure that you mention all work you’re wanting to be carried out before booking in so that we can schedule this into the diary accordingly.

Mentioning work when you drop your car off means that we will run into delays as it was not scheduled in the diary.

Frequently Asked Questions

Please check the below questions to see if it answers your query before ringing the office

Bookings

We require non refundable deposits for all bookings made, if you’re 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.

We also ask that all invoices are paid by BACS before collection.

Engine related FAQ

All tuned Vehicles should be ran on Audi long-life 5W40 oil.

All 2.0L 2.5L and 4L engines should be ran on NGK race plugs once tuned.

Please let us know if service work needs to be added to your estimate

Service Intervals:

  • Oil and filter change once a year or every 10k
  • Major engine service every 2 years or every 20k
  • Transmission (gearbox, haldex, diffs, transfer box) should be done every 3-4 years, every 35k
    • Depending on how the car is driven, if the car is driven hard/ abused etc then these intervals should be cut in half.

Fuel

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

Coilpacks

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.

Labour rates

Our standard labour rate is charged at £109+vat unlress the vehicle is tuned by ourselves and we are supplying and fitting all parts then it is discounted to £92.50+Vat

B5_2.7L Twin turbo Bi Turbo engine diagram