BadA$$

iTrader: (4)

I traded my Trans Am a few months ago for a 2006 Grand Prix GXP. I love the car, great for trips with the new wifey. It's not as flashy or quick, and this is what I am wanting to change.

I am wanting to know of some appearance mods, and some quick hp/tq mods. This thing is a dog in second gear and that needs to change. I like the wheels, but the front ones are a little chiped.

Any of your opinions help. Here is a quick shot I snapped when I first got it. There with my phone so not great. I also know that there is a ford tag up front, it's the dealer ship I got it from.

Thanks, Justin Smallen

Oh yeah, the last one is how i was thinking of doing my wheels...don't worry its just black tape. lol

Panther427

Hey welcome to the LS4 world. A local LSX chappter u might wanna join is Coloradolsx.com i had a HP tune done by one of the members there. I like the wheels.
My best run with my car at bandi with the HP tune, cut out, and home made intake is 15.1

JP_GXP

Mine ARE black But mine aren't real Alcoas like yours.



Tune and cutout really help second gear, third is still a little slow.

A good tune runs second to ~101 in Auto, instead on 90.

BadA$$

iTrader: (4)

Hmmmm!!!! I love your car, where did you get your rear lights, and 3rd break light. Did you make your your intake headlight yourself????

Panther427

Tails are off ebay, his light is a cover, and yes he made his intake lol. sorry i wanted to answer

Pauls325

iTrader: (1)

welcome the cutout is a nice one intake is also helpful had a ported tb on for a while helped the top end a ton but it throws a code so you need a tune

bigalnash

great color used to have a white 04gpgt great color easy to keep clean believe it or not. I have a shadow gray metaillac grand prix gxp great car not sure about the color anymore :/ . a tune will wake up this car , cai, mangnaflow, and get donromes brackets and bars. they help the handling of this car quite a bit. ssc sells lowering springs as well which help with the appearance and handling!! ITS TWO FOR ONE TODAY!!!!!!!!!!!!!!!!!!!!! stuff like that. get some led tails those are kickass.

Brian396

iTrader: (3)

Welcome to LS4 tech. I had really good luck with the K&N & HPtuners tune (by a pro), if that ain’t enough a turbo will really wake up 2nd gear.

JP_GXP

Correct about tails; wrong about third light, I painted it ; and correct about intake.

EDIT: the tails are the smoked ones, not the clear ones, btw.

Panther427

DOpe, i thought i had it right since i had the same questions about your sexy *** car lol

CavPat

Off topic!?


j/k Panther.

JP_GXP

Thank you lol

Panther427

https://ls1tech.com/forums/ls4-front...ustom-fwi.html

DavidGXP

iTrader: (14)

LS6 valve springs (yellow) and 1.8:1 roller rockers. Then get a tune. Raise your shift points to 6100-6200 and remove or limit the torque management, also have the line pressure raised so your shifts won't be so boring. Definitely get dyno tuned and avoid mail order tunes. see whats going on before you change things. with those mods you should be aound 275hp at the wheels. you can get the inferno hood,bumper and wing, for looks. from pfyc. also do everything possible to lower your engines iat temps these cars get ridiculously hot and the heat kills power everywhere, so for starters you can heat wrap your crossover pipe, build a maf heat shield and wrap your intake piping with rubber tape, and then with reflective foil tape. a lot people have relocated there iat sensors but i prefere to leave it where it's at. and not cheat the computer. Pull the weather striping from your cowl and also use the rest of you header heat wrap to cover the metal heater hose pipes next to the fuel line and throttle body. 2nd gear will never feel all that impressive do to our lazzy gear ratio 2.93:1 you will find that you will just be shifting into 3rd just before 100 or a little after.

DavidGXP

iTrader: (14)

air intakes and exhaust don't really wake these engines up to much if you really wanna do exhuast then i would recomend using a qtp cut out just before the split at the rear and using a 3" down pipe with the stock exhaust from the cat back the cut out will give you a lot more sound and a little more top end when opened.

JP_GXP

My next project

Jay z28

iTrader: (5)

This is what my wheels look like except not black. I like the wheels on the OP's car better though. Why are they different? Did they have different wheels for different years?


Also, welcome! I love the color. It is the same as mine. I am doing the same as you though. Except I already have Magnaflow cat-back. I'm just looking for my next purchase. I'm thinking some exhaust wrap, a CAI, Hogan 3" Catted downpipe and then a tune.

Good luck to you.

JP_GXP

Some time during the 07 model year GM's contract with Alcoa ended, so from then on they put cheap Taiwanese knock-offs. So his are real Alcoas and mine are not.

EDIT: I like the Alcoas a lot more myself.

Jay z28

iTrader: (5)

Thanks for that tid-bit of info.

I also like the alcoas better too. Now I feel like I have been jipped.

Panther427

ya i wished i had the alcoas too.