4.3 Throttle body aluminum adapter plate

This precision-machined aluminum adapter plate lets you run a GM 4.3L throttle body on your Ecotec intake manifold. The larger throttle body opening improves airflow and throttle response, and when paired with a proper tune, delivers real, measurable power gains. Features Precision-machined from 6061 aluminum for exact port alignment and a leak-free seal Designed specifically for GM Ecotec intake manifolds Increases throttle body bore for improved airflow and throttle response Best results when used with an SBR Performance ECU tune to take full advantage of the increased airflow A straightforward upgrade with a big impact. If you're building an Ecotec for the street or the track, this adapter is a natural first step. Questions about compatibility or pairing it with a tune? Contact us, we'll point you in the right direction.