Resonated secondary catalyst bypass for the BMW G8X M3 and M4 (S58 engine). Constructed from T304L stainless steel with mandrel-bent 3.00 inch (76.2mm) piping, the resonated design is tuned to the G8X platform for a refined yet sportier exhaust character at full throttle while minimizing drone at cruise. Replaces the factory secondary catalyst with direct fitment to OE downpipes and OEM hangers.
Key Features:
T304L stainless steel, mandrel-bent 3.00 inch piping
Resonated design for a refined, sportier tone with minimal drone
