CP Carrillo 98mm Big Bore Piston Cometic Gasket Top Kit for Yamaha WR450F '03-04 S630-1650-13C A: While primarily for Yamaha

A: While primarily for Yamaha YFZ450R

this 102mm stock bore piston boasts a high compression of 11:1

YFZ450RHDC

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Whether you're a weekend warrior or a seasoned racer

CP Carrillo 98mm Big Bore Piston Cometic Gasket Top Kit for Yamaha WR450F '03-04 S630-1650-13C A: While primarily for YamahaCP Carrillo 98mm Big Bore Piston Cometic Gasket Top Kit for Yamaha WR450F '03 04 CP Carrillo 98mm Big Bore Piston Cometic Gasket Top Kit for Yamaha WR450F '03 04 High Performance 98mm CP Big Bore Piston Kit for Yamaha WR450F (2003 2004) Boost Power to 478cc! Unleash the full potential of your Yamaha WR450F with our premium 98mm CP Big Bore Piston Kit! Specifically designed for 2003 and 2004 models, this kit transforms your bike's performance by