Hello I have been thinking of starting a few mods on an 07 3800 Grand Prix. I would like to start with the Cold Air Intake. I plan to just buy a Cone Air filter first and put it right on the Throttle body and extend it later when i get time away from the engine. From what I can tell from posts here that would hurt performance and increase MPG? Also I would like to do PCM tune, but is this possible on an 07?
I read the stickys about safely modding your 3800. Is it worth trying to get more performance out of a N/A motor?
I read theres no option for a down pipe delete for this model is this true?