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Free shipping on orders over $79 to Illinois
Orders over $79.00 will receive free shipping. This is a residential delivery service, deliveries Monday through Friday from 9:00am to 8:00pm.
As the pioneer of quiet performance mufflers, FMF raised the bar again in 2007 with the second generation of Q series mufflers, the Q4.
Built from the ground up, the Q4 is a completely new design, engineered for maximum performance while maintaining a sound level at or near 93dB on most models. The Q4 is the market leader for low sound / high performance. Less sound equals more ground.
The Q4 incorporates Factory Forward Engineering to move the muffler closer - centralizing the mass for improved handling characteristics.
The new Hi-Flo formed end cap reduces weight and is less prone to damage.
The Q4 has an anodized aluminum canister and is lighter and quieter than the original Q model slip-on.
All Q4 exhausts utilize a maintenance-free U.S.F.S.-approved turbine type spark arrestor so there is no screen to clean or burn out.
The Q4 employs free-flowing internal baffles and chambers, advanced sound-absorbing materials and a reduced weight.
Max Sound output 96dB, most models below 93dB.
Constructed from aircraft-grade aluminum and high-strength stainless steel.
Use with stock or FMF header.
Note: For closed course competition use ONLY. Not intended for street use.
WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.