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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
This feature is possible using vacuum-actuated valve flaps that open and close depending on driving conditions and input from the driver
At lower engine speeds and during cruise operation the valves are closed and produce a deeper exhaust note
Cat-back and Axle-back options available
Perfect Power
BMW M3/M4 (F80, F82, F83) Post Cat Spare Pipes with Muffler Steering and Suspension This feature is possible usingBMW M3 M4 (F80, F82, F83) Post Cat Spare Pipes with Muffler The silencing effect of the OEM Spare Pipes and Resonator are reduced while maintaining a higher flow muffler and enhancing the car's naturally aggressive engine sound. Made from T309 (1. 4828) stainless steel.
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