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Is this pipe compatible with aftermarket intercoolers
25\" silicone couplers for use with the standard S4 Y-pipe
Smooth tubes for improved airflow
2x Original (OE) gaskets
with 36% more cooling surface
Decat Downpipe met OPF Audi A4-RS4 B9 Facelift / A5-RS5 F5 Facelift bmw-5-series-e6x---03-10-520d-esi9715623 Is this pipe compatible withThis decat Downpipe with OPF is designed for the Audi A4 RS4 (B9 facelift) and the Audi A5 RS5 (F5 facelift) with 450 hp. The part is made from stainless steel and is supplied without a catalytic converter. The connection diameter on the engine side is 149 mm, on the exhaust side 72 mm, and the part has eight connections. The engine software must be adjusted accordingly. Please note: this part is not intended for use on public roads. It is a
