illtakeblack

Hi folks.

I've been thinking about the GMPP Intake as well as the Jet Performanace module.

Does anyone have both? If so, which one was added first? If you do have both, do you have the stage 1 or 2 Jet module.

What's your overall experience of each mod?

I saw a seperate thread for the GMPP and it looks really good.

Thanks.

cperez1217

I have both on my 2.2 l cobalt and the gmpp exhaust the chip makes a worl of difference. More power and better mileage

shepNfl

i have the gmpp intake it did make some difference in milage and hp. I was thinking of the what the chip would do for me as well. would the money be better spent on an exhaust system. I want more hp and milage but not the loud exhaust. I had a cavalier LS coup with the 149 hp 2.2
I do miss the milage and the "put you back in the seat" feel of it