Top End

Manufactured to the highest precision and qualityConstructed to meet OEM specificationsAvailable in standard sizes only Honda -- XR400R -- (1997, 1998, 1996, 2001, 2003, 2004, 2000, 1999, 2002);...

VALVE STEEL INT YAMHIGH-PERFORMANCE ENGINE VALVESValves are stronger and more reliable than OEM because they're forged as one unit, rather than pieced together like stock valvesTreated with either...

VALVE STEEL EXH CRF150RHIGH-PERFORMANCE ENGINE VALVESTitanium valves are stronger and more reliable than OEM because they're forged as one unit, rather than pieced together like stock valvesTreated...

VALVE STEEL INT YAM 350HIGH-PERFORMANCE ENGINE VALVESValves are stronger and more reliable than OEM because they're forged as one unit, rather than pieced together like stock valvesTreated with...

VALVE STEEL INT KTMHIGH-PERFORMANCE ENGINE VALVESTitanium valves are stronger and more reliable than OEM because they're forged as one unit, rather than pieced together like stock valvesTreated with...

VALVE STEEL INT DRZ400HIGH-PERFORMANCE ENGINE VALVESTitanium valves are stronger and more reliable than OEM because they're forged as one unit, rather than pieced together like stock valvesTreated...

Made in the U.S.A.Be sure to use race fuel with some applications Kawasaki -- KFX 450 R -- (2012, 2008, 2009, 2013, 2010, 2011, 2014); Kawasaki -- KX 450 F -- (2004, 2006, 2011, 2005, 2008, 2012,...

Made in the U.S.A.Be sure to use race fuel with some applications Honda -- TRX450R Sportrax -- (2005, 2004); Honda -- TRX450R -- (2004)

Made in the U.S.A.Be sure to use race fuel with some applications Yamaha -- YFZ 450 4x2 -- (2006, 2011, 2016, 2005, 2009, 2004, 2008, 2013, 2007, 2012, 2010, 2017, 2015, 2014, 2019, 2018); Yamaha --...

Made in the U.S.A.Be sure to use race fuel with some applications Polaris -- Sportsman 800 EFI 4x4 -- (2010, 2008, 2012, 2009, 2013, 2014, 2011); Polaris -- RZR 800 4x4 -- (2009, 2011, 2012, 2010,...

High-performance, cast pistons closely match original equipmentEngineered for the best possible heat transfer from combustion chamber to cylinder wallsRings are replacement for one pistonAll pistons...

High-performance, cast pistons closely match original equipmentEngineered for the best possible heat transfer from combustion chamber to cylinder wallsRings are replacement for one pistonAll pistons...