Closed-course racers prefer the Pro Circuit Racing R-304 silencers for their motorcycles. Developed as a full-race 2-stroke muffler, the compact canister design pro
Closed-course racers prefer the Pro Circuit Racing R-304 silencers for their motorcycles. Developed as a full-race 2-stroke muffler, the compact canister design promotes top performance gains. The wrapped perforated core construction is encased in a 6061 T6 brushed aluminum body, with a polished stainless steel intake tube and end cap. The R-304 silencers are TIG and MIG-welded for durability--and double-walled mounting brackets are included. Hex head screws secure the inlet cap and are easily removed for quick re-packing. Pro Circuit Racing R-304 silencers are available to fit nearly every make of bike, including Ya
Closed-course racers prefer the Pro Circuit Racing R-304 silencers for their motorcycles. Developed as a full-race 2-stroke muffler, the compact canister design promotes top performance gains. The wrapped perforated core construction is encased in a 6061 T6 brushed aluminum body, with a polished stainless steel intake tube and end cap. The R-304 silencers are TIG and MIG-welded for durability--and double-walled mounting brackets are included. Hex head screws secure the inlet cap and are easily removed for quick re-packing. Pro Circuit Racing R-304 silencers are available to fit nearly every make of bike, including Yamaha, KTM, Suzuki, Honda®, Kawasaki, Husaberg, and Cobra.