Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] For those with applications that

For those with applications that require the fast and consistent action of and air shift this is exactly the shifter for you

they won't eat up race-winning horsepower

This body has a much larger diameter then your existing throttle body

accurate movements when shifting

They are designed to work with factory

Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] For those with applications thatThe 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.