Kibblewhite 80-80206 - Kibblewhite Lightweight Racing Valve Spring Kit For Yamaha WRF450 2003-201

Features: Compatible with boosted or turbocharged applications. Designed with increased spring rates and high lift compatibility compared to the stock springs. CNC-machined titanium or H.T. (Heat Treated) Steel retainers and Cr-Si (Chromium Silicon) alloy dual springs provide valvetrain control at high rpms with high-performance camshaft capability. Made in the USA. Kit Includes: • 3x Intake Titanium Retainers • 2x Exhaust Titanium Retainers • 3x Intake CrSi Valve Springs • 2x Exhaust CrSi Valve Springs • 3x Intake H.T. Steel Basewashers • 2x Exhaust H.T. Steel Basewashers • 3x Intake Viton® Seals • 2x Exhaust Viton® Seals.