Chevy GM LS3 Dual Plane 4150 MID-AIR™ MidRise Aluminum Intake Manifold [Black] The Speedmaster throttle body begins

The Speedmaster throttle body begins as a billet of 6061- T6 aluminum for superior quality and is introduced to a state-of-the-art CNC machine

and have a maximum pressure of 7 psi with an externally accessible pressure relief valve

With an adjustable vintage plastic snapback closure

Whether you're overhauling an engine or looking to upgrade your vehicle's performance

This hood scoop hat is one of the best in the fuel and alcohol classes

Chevy GM LS3 Dual Plane 4150 MID-AIR™ MidRise Aluminum Intake Manifold [Black] The Speedmaster throttle body beginsThe Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise. The main difference is that there is an open area under the plenum chamber. This feature is sometimes called an air gap design. The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine. This cooler air charge provides additional power and torque.