

Project Audi S4: 665 HP and 800 Nm
The Audi S4 is the sports version of the Audi A4. The next higher sportier version is the Audi RS4. The 2.7L V6 Biturbo engine is considered very solid and can be compared to the 1.8T 20V (Golf 4). So it was only a question of time until BAR-TEK would dedicate itself to this project. As always, we wanted to know what we were talking about when it came to professional engine tuning. The best experience can only be achieved by doing it yourself, said Bartek, and then we started with the V6 Biturbo engine.
Profile Audi S4
Brand | Audi |
---|---|
Model | S4 |
Performance | 665 PS |
Torque | 800 Nm |
Maximum speed | fehlt |
From 0 to 100 | fehlt |
Engine | fehlt |
Gearbox | fehlt |
Weight | fehlt |

The engine was of course completely rebuilt with the following components:
- ARP studs for the engine block and the cylinder heads
- I-beam connecting rods with coated race bearing shells
- Main bearing shells for the crankshaft
- Wiseco turbo pistons with turbo piston pins
- Race cylinder head gaskets for 8,0:1 compression
- Upgrade Turbos with manifolds
- Race spark plugs with 0.6 mm electrode spacing
- Gates Racing timing belt
- CNC machined cylinder heads
- BAR-TEK® Sport Valve Spring Kit with Viton stem seals
- Supertech Exhaust Valves Inconel and Inlet +1mm
- Upgrade camshafts
- Fluidampr Crank Pulley
- Race clutch kit Sachs
- Adjustable fuel regulator and Siemens Deka injectors
- Upgrade intercooler and Bosch 044 pump must not be missing, of course.
- The susceptible ignition coils were replaced by our plasma coils.
- Please order adapter plates and the cable kit directly with your order.











The result is impressive! 665 hp and 804 Nm with a nice and clean performance curve tuned on our Maha MSR.