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08-18-2013
I bought a 97 GTP sedan back in 1998 before anyone really knew about them or hopped them up much. It was a awesome car. I left it stock and we got 160,000 trouble free miles before we sold it. I just sold my 04 CTS-V to get a car with a little better on fuel (yeah right). Anyhow I bought a 99 GTP with under a 100k on it so let the modding begin. Oh and I need to get the post count up there so I can sell some of the spare parts I have acquired already.
08-18-2013
Whoops I should read before I hit enter, Frand Prix lol?
08-18-2013
Welcome. What are your goals with the car?
08-18-2013
I installed a highflow cat/midpipe. I have a 3.4 modular pulley kit on order and a set of 07 GXP brakes in the garage for it. I also ordered a dul gauge pod for the dash I have a couple of Aeroforce scan gauges layin around not doing anything. I also already licensed the PCM thru HPtuners. I would like to make the car fun. It would be nice to have a 13 second ride, shouldn't be too hard right?
08-18-2013
3.4 should easily get you into the 13's
08-18-2013
Oh, and I have a line on a SLP hood which I believe is one of the best looking aftermarket hoods ever.
08-18-2013
Welcome. Make a ride section to post your pics and progress
08-18-2013
So is a intercooler necessary with the 3.4 pulley or can I do without? I wouldnt mind adding one. Will a IC fit under a SLP hood? OR is a SSIC even worth it? Thanks
08-18-2013
I need to find some links of a GTP drag racing so I can get a idea of how they stage/launch etc
08-18-2013
Just run headers for that 3.4 pulley.
The front manifold and the wimpy 2.25in downpipe won't like that 3.4 very much.
08-18-2013
Make a ride thread!
08-18-2013
I have a 3 inch down pipe, I was trying to avoid headers if possible. I noticed very little to no gain on my Silverado SS when I had a magnacharger MP112 on it and changed from manifolds to headers.
08-18-2013
Headers = a must on pulley drop
08-18-2013
There really isnt a gain in the butt dyno by adding them, its the ability to flow more exhaust gases and help prevent knock.
Seeing that you have a 3in downpipe, a front powerlog is what I would do then.
You said you had HPT, so run the car and see what it likes. If it has a bunch of KR, then you know you need to adjust the tune a little bit and add more exhaust flow like that powerlog. Having a wideband handy will help alot aswell.
08-18-2013
Tuning is key. An intercooler could drop you below the 3.4 but befor you go that route grab headers and cam it. Headers are easier to do than an intercooler and cheap.
08-18-2013
Speed daddy headers if you want to go the cheapest route. Cheaper than a plog and dp
08-18-2013
Aren't gxp brakes too big or something? I recall hearing that somewhere
08-18-2013
To run GXP's up front, 17's are needed. In the rear the GXP's fit just fine.
08-18-2013
Makes perfect sense. I was actually right on something lol
08-19-2013
I have 17 inch Comp G wheels that I just put on in anticipation of the brake upgrade. My CTS-V had incredible brakes and I want something that is better than what a stock GTP has to offer.
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