Thread: How Do I Make a 07 Grand Prix Sedan Faster?

Originally Posted by $03gp/gt$

Man im lost with the CAI, Plog, HVTB i have no clue what that stuff means lol....

Here's my CAI (cold air intake):

ZZ Performance

Can you build one? Sure. It probably won't be as good at insulating the intake charge, and probably won't look as good if you're into showing your car. But, it'll function.

Plog:

ZZ Performance

DP (downpipe):

ZZ Performance

HVTB:

ZZ Performance

With all this you're going to want some tuning to not go lean when you floor it. Overkill Motorsports or Intense racing would be good places to get it.

Originally Posted by $03gp/gt$

Also remember I do have Flomaster Exhaust.. What can I do to get it to sound a lil better

Ditch the flowmasters. Get something by Magnaflow.

Originally Posted by $03gp/gt$

and get better air/fuel mixture

Air/fuel mixture is controlled by the PCM. Changing that requires tuning.

Originally Posted by $03gp/gt$

to get a lil more hp outta of it also?

Catbacks don't really make HP until you're really modded. If you want to get one, you're only doing it for looks and sound.