Scope of delivery:- Y-pipe / downpipe for Audi A4 B7 2.0 TFSI Quattro ø 76mm 3" from catalytic converterDescription: - The Y-pipe sits between the catalytic converter and the exhaust system. It is screwed onto the original catalytic converter. It has a cross-section of 76mm 3". The larger downpipe reduces back pressure, relieves the turbo and allows more power to be delivered, depending on the components installed up to 450 hp. To fit the original exhaust system, a reduction sleeve from 76>55mm must be used, but usually, for tuning, larger exhaust systems are used, and in this case, the pipe cross-section should not be reduced. Due to the larger cross-section of ø 76mm 3", the downpipe may need to be dented in at certain points.Suitable for: - Audi A4 B7 2.0 TFSI QuattroOptional parts: - Matching 200-cell sports cat 340111Registration: For individual approval according to §21 StVZO, please consult your TÜV inspector.We would like to point out that the installation of this item constitutes a modification that invalidates the vehicle's operating license in accordance with the StVZO. Not permitted for use on public roads.