Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] Designed for engines producing up

Designed for engines producing up to 500hp

In addition

They are designed to work with factory

accurate movements when shifting

Designed to complement any space

Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] Designed for engines producing upThe 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.