Spring Kit Steel Yxz1000R 80-81700

Lightweight Racing Valve Spring Kit

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

Recommend using shortened valve guides to achieve higher than stock lift.