Ferrea Intake & Exhaust Valve Guides Set STD Honda B16A2 B17A1 B18C1 B18C5 H22A1 H22A4 VTEC

Valve Guides are a wear-item. They wear over time and eventually should be replaced. The higher you rev, and the harder you push your engine, the more important tolerances become. If you are spending the time and money to upgrade your valvetrain, be sure your tolerances are correct by replacing your high mileage guides with brand new aftermarket valve guides.