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Flex rated to -30° C
no gaskets needed
this workhorse is equipped with premium components
Wear Resistance (Index=Std
The Yoshimura-backed GEICO Honda team also took home both East and West Coast Supercross Lites titles in 2012 using the Yoshimura RS-4 exhaust
Yoshimura RS-4 MX Slip-On Exhaust Balaclava Flex rated to -30° CYoshimura RS 4 Slip On Exhaust The Yoshimura RS 4 Slip On exhaust has been put to the test and has proven its capabilities at the highest level of competition. In 2010 the RS 4 muffler helped Ryan Dungey claim the AMA 450 Supercross and Motocross championships in his rookie season. The Yoshimura backed GEICO Honda team also took home both East and West Coast Supercross Lites titles in 2012 using the Yoshimura RS 4 exhaust. Utilizing the same R&D that