Scope of delivery:- Downpipe for Audi A4 B7 2.0 TFSI Quattro ø 76mm 3" from catalytic converterDescription: - The downpipe is situated between the catalytic converter and the exhaust system. It is bolted to the original catalytic converter. It has a cross-section of 76mm 3". Thanks to the larger downpipe, the backpressure is reduced, the turbo is relieved, and more power can be achieved, depending on the components installed, up to 450hp. To fit the original exhaust system, a reducer sleeve from 76>55mm must be used, but most of the time, with tuning, larger exhaust systems are used and then the pipe diameter should not be reduced. Due to the larger cross-section of ø 76mm 3", the downpipe may need to be dented in certain places.compatible with: - Audi A4 B7 2.0 TFSI QuattroOptional parts: - Matching 200 cpsi sports cat 340111Registration: For individual approval according to §21 StVZO, please ask your TÜV inspector.Please note that installing this item constitutes a modification which invalidates the vehicle's operating license under StVZO. Not permitted for use on public roads.