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Changing to lighter exhaust valve springs allows the exhaust valves to open at the proper time maintaining proper top end horsepower and running consistency
1988 Ski-Doo Safari 377E
Icon Sport fit with straight body and semi-precurved arms
With a total capacity of 8
1992-1994 Honda CR500R
Vortex CK6312 HFRA Hyper Fast 520 Conversion Chain and Sprocket Kit (Black) exhaust-exhaust-springs-o-rings Changing to lighter exhaust valveChain Application: Street Chain Length: 114 Chain Type: 520 Marketing Color: Black Chain: 520SV3 114. Front: 15. Rear: 47 All Vortex Performance Links chain kits are ready to install and require no chain cutting. Vortex Performance Links chains are made in Japan to the highest quality specifications in the industry. RV3 Series chains feature a 3 pocket sealing system with up to 10 times the wear life of standard o ring chains. All chains in these
