need help with an 06 Grand Prix
Do you know what they checked?
Do you notice if the car is engine hotter then normal?
The Best V8 Stories One Small Block at Time
http://www.turbobuicks.com/forums/bu...e-if-good.html
You have a Type 2 coilpack, iirc.
I might be wrong and some will argue but I am speaking from personal experience here. I did one mod at a time on my GTP and there was a huge night and day difference when I added the full 3" exhaust from the collector all the way out the back to when I finally broke done and bought a cat back system. I gained back up what I lost.
I feel for you. Maybe it's time to move on to the next car.



