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Direct to Head

Direct to head throttle bodies are a concept that dates back to our work with the earlier Vauxhall/Opel engines and we exclusively offer the same benefits for the Ecotec.

This design requires no inlet manifold and as the name suggests the throttle bodies bolt directly to the cylinder head. The result is throttle bodies that are easier to fit and lighter than any other system available today.

Available with a 45mm parallel bore to the butterfly and a taper up to the inlet port. Versions are available to take single or double injectors and an integral air bleed screw makes idle speed easier to control.

There are obviously many other designs of throttle body. However we have carried out extensive dyno testing to arrive at the best possible solution combining simplicity and effectiveness in a compact, affordable, and lightweight package.