BMW R850GS Exhaust Silencer Muffler HP1 BLACK + dB killer medium Cartridges Hyperpro Progressive Springs for APRILIA

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BMW R850GS Exhaust Silencer Muffler HP1 BLACK + dB killer medium Cartridges Hyperpro Progressive Springs for APRILIABMW R850GS Exhaust Silencer Muffler HP1 BLACK + dB killer medium Dominator HP1 slip on silencer built for BMW R850GS HP1 BLACK + medium. Supplied with a removable dB killer insert. RACE USE ONLY not approved for public road use. Always check local regulations and venue noise limits. Key specs & features Includes removable dB killer insert. Medium insert option (as listed). Use to fine tune exhaust volume; results depend on silencer core and engine