Congrats!
you already had the car on the road?


I am not sure but i had in mind that the X-Pipe from the ABH has a little bit more diameter,
the cat pipes as well.
So i think the engine can breathe better
The headers are from the ABH ?

Gude Mario Audi 100 CD Autom. Bj.83 Audi 200 20v Bj.89 Audi 5000 Bj.85 Audi V8 3,6 Autom. Bj.88