LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Finally got one got a few questions.

Old 05-24-2010, 01:58 AM
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Default Finally got one got a few questions.

So I finally got a ls4 its a 07 black GP GXP totally stock sitting on goodyear eagle f1's. Im thinking bout doing some mods in the near future and wondered what you guys thought. Im thinking maybe headers, exhaust, cutout, tune, shift kit, trans cooler, cai. Whats a good place to buy this stuff? How much you think just the parts cost? I looked one day and wasn't finding a diablo tuner for my year? I'm also going to debadge tint windows and maybe paint the rims black anyone else do this on theres? hope my pic works













Finally got one got a few questions.-car.jpg
Old 05-24-2010, 05:09 AM
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There is NO Diablo Tuner for 07 LS4s. You'll have to go with something else like Superchips Cortex or buy or get a HP Tune(r). Start easy, work your way up. Start with intake and exhaust, cai, downpipe, cutout first. Headers are expensive and not an easy installation and there have been cracking/whistling problems. A good tune can help shifting but a tranny cooler is a good idea. Higher lift rocker arms and truck ignition coils are good ideas also.
Old 05-24-2010, 06:17 AM
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What about the really good looking driver mod? Does that help Tappeter? Lol


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