Mayhew46

Has anyone purchased a painted plenum cover for C7 that just goes over the current plenum cover?

Flame Red

PM forum member fred1971 as he just bought and installed one. Initially, he was not pleased with it.

ferd1971

Just for clarification, I purchased the Plenum OVERLAY from RPI. It was painted very well and even had the 3M tape necessary to apply it. Once I installed it, the overlay actually popped up from the OEM plenum. It almost seemed like there was not enough 3 M tape to hold it down. I later discovered the plenum overlay was slightly warped in an upward direction. When I contact Don at RPI, he recommended waiting for the temps to reach above 70 degrees before applying and to make sure you clean the OEM plenum with alcohol. I went one step further...I bought more 3M tape and applied it to the overlay. When the weather got nice enough, I applied it and then laid a terry cloth towel on top of it. I also laid 20-30lbs of hand weights on the towel to hold the overlay in place. After about 1 week (you don't have to wait this long), I removed the weights and towel and the overlay was perfectly attached. Looks great now!

Your other option is to purchase a painted OEM plenum...It costs 2-3 times as much as the overlay and is attached using the OEM screws.

bbrown450

Ferd... can you snap a pic please

ferd1971

Here you go...

The before...showing the curvature of the Plenum overlay.
The after...showing the completed project (sorry, I don't know how to rotate the photo)