Supertech Performance Engine & Valvetrain Components

Supertech Performance is a U.S.-based automotive performance brand specializing in precision engine internals and valvetrain components for high-performance, racing, and engine rebuild applications. Based in California, Supertech works closely with professional engine builders and uses advanced engineering methods such as finite element analysis (FEA) to optimize strength, heat resistance, and durability for high-RPM and high-stress environments.

This collection includes Supertech intake and exhaust valves, valve springs, titanium retainers, valve locks, bronze valve guides, and complete valvetrain kits for a wide range of engines including Honda/Acura, Subaru, VW/Audi, GM, Mazda, and more. Designed for boosted, high-revving, and competition engines, Supertech Performance components are trusted by racers and enthusiasts seeking reliable upgrades beyond factory valvetrain limits.