GSC Power Division BMW S58 & B58 Exhaust Valve Guides feature a stopping design to prevent the valve guide from dropping and allow you to install faster.
Specifications
Standard sized sold as set of 12 or individually
Oversized sold individually as +0.001" and +0.003"
Can be used with OEM Hat Style Seal or with a metal clad seal if a different spring seat is needed
Stopper design to aid in quick install and to prevent valve guide dropping