Hi yall new to the site and looking for info. I own a '99 GTP and have been itching for a vette just do not want to spend the $$ for it.
I love my Pontiac and think I might just start modding it.
I am not familiar with whats hot and whats not so please help with Ideas.
It is stock now and the gas mileage is running about 18/20mpg in the city. Is this normal. Fuel filter is fresh, plugs and wires are fresh(cept I put in platinum and see this is a no no. I will be a changin them this weekend.)
Tranny fluid is fresh but went awhile being dirty and I am noticing a shimmy going for 2 and 3 gears.
All in all nothing worrying me to awfull much, just wanted to know about after market parts and such.
Thanks in advance

Welcome!
City driving that is pretty much what to expect.
And depends on your accelerations, and really how you drive it.
Check out the FAQ and do some searching.
Plenty of info will be found and lots will be gone over many times.
If not, feel free to ask.

SAVANNAH! LOVE THAT PLACE!!! I used to live on White Bluff in Turtle Creek. Spent 5 years there at Hunter. Welcome aboard. Great info and great people. Follow the terms and conditions and you wont hafta worry about the rules nazis sayin anything.

As for maintenance and mods, look around our FAQs and Dealers/Stealers threads. Search here is a marvelous thing. Above that, ask specific questions with symptoms/ideas/attempted fixes...all pertinent information.

Oh, and we are pic whores here. Check the FAQs on how to include pics and sigs and such.

Yeah Sav. is a cool place been here all my life,thanks for the quick replies.I guess I am really curious about this ZZP thing I'm figureing it to be an exhaust mod?

No, ZZP is one of the biggest Vendors for the grand prix. But exhaust mod, the ubend delete, is the highest priority mod usually for these cars.

By doing the exh mod, you will also hafta do the CAI mod to net the most gains for torque and efficiency. And sound. Oh the sound of a otherwise stock GT with a CAI...thank you Slick!

I have heard that the undersized pulleys are not a good thing for the super changer,is this true?
Is there a cheat sheet for abreveations yall use on this site?

http://www.grandprix.net/ubb/ultimatebb.php?ubb=get_topic;f=1;t=004227

ask as you go, really.

CAI: Cold Air Intake. Wizaired and K&N are the most used manufactured. There are plenty of DIY write-ups on making your own.

exh: exhaust

PCM: Power/Primary Control Module. Also called the computer. Our cars have 2, that I've counted. There's also the BCM (Body Control Module).

res: resonator. Just in front of the cat

cat: catalytic converter. Turns bad exh into more eco-friendly exh.

d/p: down pipe. Goes from the collectors to the res

the others in 20gtp02's sig are all mfrs or model names.

How about the scanners to check for codes? Is this something I can get into being a person with rare sense, because common sense is just all to common.

lol. a scanner is pretty cheap. Pretty much any car parts store will have a OBDII scanner. What I think you're looking for is real time scans that tell you what your car is doing, such as fuel trims etc. Those are tuners. DHP made one called the Powertuner. There are others. Dont ask me what those are. Some are better than others. Again, a search around this site will yield great results.

Tuning is not all that easy, and you have a distinct possibility of frying your PCM. Have a spare to tune and keep your OE PCM just in case you make a bad tune or fry the computer and need to return to stock.

You can go to most local autoparts stores and have your car scanned for codes. Come back here and we can diagnose the issue for you.
http://myweb.accessus.net/~090/dtcobd2p.html#pow

There are also two Tuning devices that can change just about anything with your grand prix computer, PCM.
One is the discontinued PowerTuner, and the other is the HPTuner.

Wow thanks for the code web page I never knew. I have always been a driver but really just a shade tree tune up kinda guy so like I said I want to learn more and I am confident in my talents, with yalls help of course.

I really want that Vette though.

dont we all. Check out the Road Mice thread in Everything Else. You CAN own a Z06 RIGHT NOW!!!

I want the hood with the intake vents also

What years were you at HAAF I was with Lockheed in 92-95 160 hangers

If you like to read and are really interesting in more then a regular tune up, read this thread:
http://www.grandprix.net/ubb/ultimatebb.php?ubb=get_topic;f=1;t=009369#000000

Thanks for the new pages to bookmark 20gpt02 I am sure they will be informative.
I try to be active in forums that I am registered to so yall will prolly be seeing allot of my 'round here,Please be patient and take it with a grain of salt.

How do I know if I have a series I or series II motor?

All 97-03 cars had the Series II motors. The 04-08 cars got the Series III.

By the way, welcome to the site.

Welcome to the club!

Welcome aboard! Here's a few vendor's sites to check out:

PFYC
3800 Performance
W Body Store
ZZP

I want to start with exhaust and intake. Maybe not the whole exhaust system but definitely the down pipe.
And suggestions on the cold air intake system would be appreciated.
What are the favorites for both?

Welcome. This forum is great for finding information about the GP

You can either make your own CAI box (directions in FAQ i think) or you can purchase one. I have a Thrasher that the guy threw in when i purchased my wheels from him. It adds a nice look under the hood and it sounds awesome under WOT.

^old pic but you get the idea, the engine mounts are painted now
Other favorites include K & N and Wizaird. You could just do a fender well intake which doesnt require making a box. All it requires is some pvc, a filter, and a little time. Search fenderwell intake and im sure you will find a write up on how to make it.

As for the dp, most people will probably say the ZZP. I dont have one, but would really like one.

^^^
thats not a thrasher CAI...

you are correct...i just ran out to check it out. It is in fact the Wizaired. For some reason I thought it was a Thrasher. Either way, it was free and it serves the same purpose

An open cone will get you more HP.

so slapping a cone on a stock hose will add hp?

yes. or you can use pvc instead of the stock hose

I was at Hunter from 00-05. Of that time, I was NSDQ from 00-02.

thanks for all replies. all I have is stock but not for long. Black 4 door with all available options so I guess once I start with the mods I will feel better about posting pics.