Audi A4
Audi A4 B6 2001 to 2004
10 engines covered on this shape. Pick yours for the standard figures, the gains and the price.
Diesel engines
6 options on the A4 B6 2001 to 2004.
- 1.9 TDi 100hp and 240Nm standard 3 stages available
- 1.9 TDi 115hp and 285Nm standard 3 stages available
- 1.9 TDi 130hp and 310Nm standard 3 stages available
- 2.5 TDi 155hp and 310Nm standard 2 stages available
- 2.5 TDi 163hp and 350Nm standard 2 stages available
- 2.5 TDi 180hp and 370Nm standard 2 stages available
Petrol engines
4 options on the A4 B6 2001 to 2004.
Finding your engine
The engine size is on your V5C, and most cars carry the badge on the boot lid. Where a model was sold with several power outputs of the same engine, they are listed separately above because the files and the gains are different.
Get it wrong and nothing is lost. We check the engine against the car before we write anything to it.
Other A4 generations
Book your A4
We write and test every file at our Aston workshop, on our own rolling road. Ring us with your reg and we will tell you what your car should make before you commit to anything.