For the ultimate in performance, complete tuned stainless steel systems include all mounting hardware. Optional mounting styles and materials available for select systems.
- Removes Catalytic converter and SET Valve
- Stock 93db @ 7,000 rpm/ M4 111db @ 7,000 rpm
- Saves 9.8 lbs over stock system
- Includes M18 and M12 O2 bungs
- Stock Max Horsepower 171.42 @ 12,760 rpm/ M4 Max Horsepower 178.23 @ 12,940 rpm
If you would like to reduce the db levels of this M4 Exhaust System Optional Stage 1 part # Q7 Quiet Inserts are sold separately and are available for purchase from SportbikeTrackGear.com using the link found below.
M4 Exhaust Quiet Insert (Db Reducer) |
Emissions Notice to Customers in California |
Important Emissions Notice to Customers in California
The State of California prohibits the offer for sale, sale, or installation of an aftermarket part, which alters or modifies the original design or performance of a motor vehicle's pollution control devices or systems, unless the aftermarket part has first been exempted from the state's anti-tampering laws and been issued an Executive Order (EO) number by the California Air Resource Board (ARB). Legal in California only for racing vehicles which may never be used, or registered or Licensed for use, upon a highway. Any California Residents who order this M4 Exhaust from Sportbike Track Gear llc agree they are doing so with the intention of using it on a closed course as outlined within the California Notice.
- Availability:
- STG Part Number:
- M|M4 SU9154|0
- Manufacturer's Part Number:
- 49