Hi guys and girls just got a 2002 Grand Prix GTP with only 45000 on the odometer.She is completely bone stock and runs good for stock. But like all men I want more. So my ? to to you is what mods so I do and in what order. Whats the most bang for the buck. I have been reading lots of forums and see cars with pulleys/ d.p./ CIA or FWI etc etc etc.... I would like some input from all of you pros out. Thanks alot looking forward to hearing from you.
New Guy with lots of ????'s
- Thread starter Scott B
- Start date
GR8racingfool
New member
Welcome!
General rule of thumb is what ever goes in, must come out.
So adding a better air intake would be a good start.
Many prefer a fender well intake (FWI) over anything else. You can usually make these yourself for next to nothing. Or you can buy them already made for you if you have the funds.
Maybe a set of new plugs, one heat range colder. Many run the AutoLite brand, or NGK's.
A down pipe is one restrictive thing on our cars, the I.D. of the pipe is quite narrow, so by adding a 3" down pipe, or even a set of headers...you would be golden. Lets not forget the ever popular "U-bend" thats the exhaust pipe for the second 02 sensor, and the sensor is mounted vertical, which makes the pipe go from round to squashed. You can have any muffler shop cut this out, and mount the 02 on the side and run a fully round pipe.
Pulley size...a 3.4" would be a good starter pulley. If you plan to take your car further...invest in a modular pulley system now, and don't even waste your time and money with a press on one size pulley.
Lots of other things you can also do...rockers, cams...etc. Just depends on your budget, and how far you want to take your car on the mod bug game.
Though, its far from a game, its more like a contagious disease.
~F~
General rule of thumb is what ever goes in, must come out.
So adding a better air intake would be a good start.
Many prefer a fender well intake (FWI) over anything else. You can usually make these yourself for next to nothing. Or you can buy them already made for you if you have the funds.
Maybe a set of new plugs, one heat range colder. Many run the AutoLite brand, or NGK's.
A down pipe is one restrictive thing on our cars, the I.D. of the pipe is quite narrow, so by adding a 3" down pipe, or even a set of headers...you would be golden. Lets not forget the ever popular "U-bend" thats the exhaust pipe for the second 02 sensor, and the sensor is mounted vertical, which makes the pipe go from round to squashed. You can have any muffler shop cut this out, and mount the 02 on the side and run a fully round pipe.
Pulley size...a 3.4" would be a good starter pulley. If you plan to take your car further...invest in a modular pulley system now, and don't even waste your time and money with a press on one size pulley.
Lots of other things you can also do...rockers, cams...etc. Just depends on your budget, and how far you want to take your car on the mod bug game.
Though, its far from a game, its more like a contagious disease.
~F~
boosting98
New member
welcome! i'd say do intake, dp, full exhaust. and if that ain't enough. then i'd touch the pulley!
SyntheticShield
New member
Welcome to the community.
If you'll post up in the Tech or Engine sections, you'll get lots of help there. Glad to have you here.
If you'll post up in the Tech or Engine sections, you'll get lots of help there. Glad to have you here.
LowlyfeGTP
New member
Welcome to GPF!!
archemedes
New member
welcome
03GPScottyd
New member
Welcome to the money pit!!!
J_Ferguson
New member
Street Wolf
Banned
Welcome to the site. 