Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] Pop-Off plates are designed to

Pop-Off plates are designed to release the high pressure that builds up inside of the engine to prevent damaging or cracking your supercharger components

Couple this Hi-Ram intake with the high flowing Ford Coyote style cylinder heads has outstanding potential for naturally aspirated and forced induction applications

hard-starting engine

Holley Performance Products and similar intakesOur Fuel Rail Kits include what is shown in the image

Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] Pop-Off plates are designed toThe 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.