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Head flange 4B11, perfect for upgrading the turbo on your EVOX or adding boost to your 4B11 Lancer. These high quality made in the USA flanges are 1/2″ thick made from 1018 steel. They feature full 3D CNC porting ensuring a smooth transition from the port shape to the runner piping without the need for porting/crushing the piping. The face of the flange features a 0.1″ recess to help concentrically locate the runners, perfect for 1-1/2″ SCH10 manifolds. Flanges priced each.
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🇺🇸 Ship from USA · On Agora since 2026
$71.99