DescriptionFor those seeking a more reliable, race engine build, we introduce the Yoshimura Valve Retainer & Cotter Set. These parts are machined at Yoshimura Japan's factory to precise specifications, and will extend periods between maintenance cycles. We have reduced the valve retainer weight by approximately 30%, which equals less friction and improved roll-on performance.
products are designed, manufactured, intended, and sold for use on
vehicles that are operated only on closed course racing circuits unless
otherwise noted. Use of these products on public roads or lands is
strictly prohibited and may be a violation of local, state, or federal
laws. Products intended for use on vehicles operated on public roads or
lands are clearly so indicated.