Description
The Pioneer Automotive V.S.I. 306 Valve Spring Shims, also known as B-306-HP, are designed for engine valvetrain performance enhancement. These shims are sold separately and are compatible with various vehicles. They are part of the valvetrain components category and are manufactured by Pioneer to ensure high quality and durability. If you’re looking to upgrade your engine’s valvetrain system, these valve spring shims could be a valuable addition to your vehicle.






