Im debating in adding a CAI to the car but wasn't sure if it would make that much of a difference or not. I had a Grand Prix GTP before the G6 GTP and made a good difference...

Also recommendations on which CAI I should look at.

Thanks

It'll make a good difference, pair that with an exhaust and you'll have some pretty good gains. Not to mention you'll get a increase in MPG, well not at first anyway lol.

http://www.doctorspeed.com/pontiac_g6/g6-intakes.html

depends on what you feel is "worth it" i guess. you aren't gonna get 20 hp out of it, but the sound alone was worth it to me. i am not sure what an intake would do for a G6 Grand Prix GTP though.

Oh you lol.

I have a Doctor Speed Air box and would highly recommend it to anyone... it is way worth.... sound always turns heads and it is said to give you around 8 or more hp gain

My drivetrain is stock except a K&N filter and mobil 1 oil. I've seen 1/4 mile times on G6 GTP's with intake mods and computer mods and my car still has a better time and speed. So would i say it's worth it, I guess not.

I say go for the intake, its a good starting point for future mods.