We are proud to offer our new 0.625" (16mm) exhaust manifold/header flange of the US spec Opel "Small Block" motor used in the Daewoo Lanos, Chevy Aveo and Pontiac Wave.

This flange is IDEAL for fabricating a custom turbo or long tube header. It features an OPTIONAL EGR port that can be left blanked or opened up for regions with strict emissions enforcement.

The A16 motor feature naturally large exhaust ports so 1.625"-1.750" primary tubes are recommended.