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Free shipping on orders over $79 to Virginia
Orders over $79.00 will receive free shipping. This is a residential delivery service, with deliveries Monday through Friday from 9:00am to 8:00pm.
Developed in conjunction with AMA Pro Supercross / Motocross teams, this evolutionary exhaust system combines power, light weight, and centralized mass to give you the confidence to dominate the race track. The RS-4 is a unique design with predicated power, a side benefit of a quiet earthy exhaust note that speaks volumes for performance and offers increased horsepower and torque. The RS-4 features all the benefits of the original RS-4 muffler, but with a unique turned-out end-cap, designed to direct exhaust heat and gases away from the bike's components. It features a polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end-cap.
Pentagonal-shaped muffler sleeve and aluminum mount bracket.
Features a polyresonant duplex chamber, a two-staged stepped baffle, and an innovative carbon cone end-cap.
Durable high-grade titanium tapered header and mid-pipe.
Considerable weight reduction.
Carbon fiber end cap comes with an 99dB race insert installed in the muffler; Optional 94dB (AMA legal) and 96dB sound inserts available separately.
Step-by-step directions and all necessary hardware included for an easy installation.
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.