Chevy GM LS3 Dual Plane 4150 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] The Speedmaster high mount serpentine

The Speedmaster high mount serpentine kit for Chevy LS engines

They also offer the potential for improved fuel economy by making the engine more efficient

unlike plastic alternatives

When good looks are important

Chevy GM LS3 Dual Plane 4150 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] The Speedmaster high mount serpentineThe 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.