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Think about getting an 08 GXP

This is a discussion on Think about getting an 08 GXP within the 5.3L V8 (LS4) forums, part of the Engine category; First of all I have read reviews about the GXP time and time again and my only main concern are ...

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    SE Level Member blackheart's Avatar
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    Default Think about getting an 08 GXP

    First of all I have read reviews about the GXP time and time again and my only main concern are the staggered sizes of the wheels/tires. Do any of you have a major problem with this such as finding sizes and such? I also heard about the trannies -ha trannies- I'm concerned but not so much. I recently sold my 04 GTP and missed it but wanted another and decided to go with the GXP, I currently drive a CTS and my other car was a 08 Saturn Sky Redline[thing is nasty fast]. In short would any of you recommend this car?
    I'm you only a little more bizarre
    my 2004 GTP.....http://videos.streetfire.net/video/g...edo_204382.htm

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    I want a Volvo. Fivefingerdeathpunch's Avatar
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    Default Re: Think about getting an 08 GXP

    I like them.

    The trans is still the same has the GTP trans but are powered by the LS4 5.3 V8, the trans can handle the power and still be very strong for the life of the car. If you beat on it and act like it owes you money all the time its not going to last. For a normal daily driver with some fun here and there its going to be just fine. I do recommend that the trans fluid and filter are changed more often because the LS4 block is aluminum and tends to keep the trans pretty darn hot and that shortens the life of the fluid, so changing it more often is better. Say every 40k ish instead of what GM says 75-100k.

    SMGPFC Member #1

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    SE Level Member blackheart's Avatar
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    Default Re: Think about getting an 08 GXP

    thank you, its going to a little drive to get it but i think it'll be worth it
    I'm you only a little more bizarre
    my 2004 GTP.....http://videos.streetfire.net/video/g...edo_204382.htm

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    SE Level Member Cocor's Avatar
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    Default Re: Think about getting an 08 GXP

    I have an 05 gxp. When I got it, the previous owner put the same tires all the way around it. 245-55 I believe. Not sure why, but it does help with tire rotation. Shopping online for tires you'll have no problem finding the correct sizes. 255-45 front 225-50 rear.
    2005 GP GXP Ivory White, HP Self Tuned, Debadged/Custom LS4 badges, K&N CAI, Intense Poly upper mounts, HSRK, HID 8000k headlights, Switchback LED front turn signals, interior LED's.

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    GrandPrix Junkie jteske88's Avatar
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    Default Re: Think about getting an 08 GXP

    im currently searching for tires i want at decent price, previous owner has mismatched rubber on front and back.
    05 GXP black, daily
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    led everthing!

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    SE Level Member blackheart's Avatar
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    Default Re: Think about getting an 08 GXP

    Ok so are there any other issues? I've read a lot but just incase I've missed something
    I'm you only a little more bizarre
    my 2004 GTP.....http://videos.streetfire.net/video/g...edo_204382.htm

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    GrandPrix Junkie jteske88's Avatar
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    Default Re: Think about getting an 08 GXP

    uhm trans goes easy, check fluids in them, make sure you dont have any warning lights in the dic. dod helps burn oil so check see how bad it is.
    05 GXP black, daily
    12 GMC Terrain SLT2 family
    led everthing!

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    GrandPrix Junkie MoarkatsINmuhtrailer's Avatar
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    If you wanna mod it... It's going to cost you a pretty penny

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    djb
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    Default Re: Think about getting an 08 GXP

    I may not be the best person to ask, but if you want an opinion on the quality of the car, I would say it is sub-par. I have an 08 GXP and its a freaking blast to drive, but I have more issues with this car than I care to mention. The car only has 40,000 miles on it, but it has been in the shop non-stop since I bought it two years ago. I have replaced the brakes twice (pads and rotors), the rear strut, the power steering pump, power steering rack is bad (not repalced yet), and the list goes on. I have had an engine light on for emissions that I am still trying to fix (see other post). I did replace the wheels but that was just usage. I did mate them as the originals. I also put snows on in the winter.

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    SE Level Member blackheart's Avatar
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    Default Re: Think about getting an 08 GXP

    think this one has a rebuilt tranny (07) the (08) is stock i think both under 100k and 10 grand each
    I'm you only a little more bizarre
    my 2004 GTP.....http://videos.streetfire.net/video/g...edo_204382.htm

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    GXP Level Member SDGTP99's Avatar
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    Default Re: Think about getting an 08 GXP

    All cars have problems.
    SSEi or SuperStandardEditionidiot

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    djb
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    Default Re: Think about getting an 08 GXP

    I agree that all cars have problems, but I have found this one has more than most I have ever owned. Case in point. I was driving the car last night, put the high beams on and could not get them to go off. Nothing I tried worked. I ended up pulling all the fuses. Got them to go off, but as soon as I put the high beams back on, they would not go off. Never had this issue with any of my other 3 cars or in reality, with any car.

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    GXP Level Member SDGTP99's Avatar
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    Default Re: Think about getting an 08 GXP

    Is your turn signal/ high beam indicator broken?
    SSEi or SuperStandardEditionidiot

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    SE Level Member blackheart's Avatar
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    Default Re: Think about getting an 08 GXP

    I test drove it today....must say i like it over my 04 GTP.
    I'm you only a little more bizarre
    my 2004 GTP.....http://videos.streetfire.net/video/g...edo_204382.htm

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    Default Re: Think about getting an 08 GXP

    Another issue people encounter with the GXP is higher usage of oil. It deals with Displacement on Demand crap. A simple tune to remove the DoD, and no more issues. Not like it uses a crap ton of oil, but a little more than normal. Plus removing it you may lose 2-3 mpg at most.

    And smile it's Blacktooth Grin!

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    Donating Users NegativeOne13's Avatar
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    Default Re: Think about getting an 08 GXP

    And as stated, mods come at a great expense.

    And smile it's Blacktooth Grin!

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    GXP Level Member SDGTP99's Avatar
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    Default Re: Think about getting an 08 GXP

    Quote Originally Posted by NegativeOne13 View Post
    Another issue people encounter with the GXP is higher usage of oil. It deals with Displacement on Demand crap. A simple tune to remove the DoD, and no more issues. Not like it uses a crap ton of oil, but a littlmore than normal. Plus removing it you may lose 2-3 mpg at most.
    Either it uses quite a bit or whoever did my oil change before I got the car didn't put all the oil back in. One way or the other my GXP was almost 3QTs low on oil.
    SSEi or SuperStandardEditionidiot

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    SE Level Member Cocor's Avatar
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    Default Re: Think about getting an 08 GXP

    Quote Originally Posted by SDGTP99 View Post
    Either it uses quite a bit or whoever did my oil change before I got the car didn't put all the oil back in. One way or the other my GXP was almost 3QTs low on oil.
    Most places only put 5-6 quarts in when it actually takes 7. My low oil light comes on after it gets 1 quart low.
    2005 GP GXP Ivory White, HP Self Tuned, Debadged/Custom LS4 badges, K&N CAI, Intense Poly upper mounts, HSRK, HID 8000k headlights, Switchback LED front turn signals, interior LED's.

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    GXP Level Member SDGTP99's Avatar
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    Default Re: Think about getting an 08 GXP

    ^^^Mine nvr came on. I'll just assume the dealership didn't actually do an oil change, but reset the DIC instead. Which means I get to spend $$ on an oil change soon just to be on the safe side. <_<
    SSEi or SuperStandardEditionidiot

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    GTX Level Member FriboRage's Avatar
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    Default Re: Think about getting an 08 GXP

    Quote Originally Posted by SDGTP99 View Post
    ^^^Mine nvr came on. I'll just assume the dealership didn't actually do an oil change, but reset the DIC instead. Which means I get to spend $$ on an oil change soon just to be on the safe side. <_<
    I've heard way too many stories about oil change places cheating people when they arent looking, Example: Not changing the oil and resetting the system, then taking the customer's money. If the typical customers I deal with at Advance are like the typical customers that go in for paid oil changes... they'd never notice.

    It takes 20 minutes and I dont even get dirty anymore after I learned the tricks doin it a couple of times.. not worth it to pay for it imo.

    Anyway I never drove a GXP but I've seen them cruising around and they seem cool, everyone says they're a blast to drive and as far as excessive problems go... go on ANY car forum for ANY make and model and you'll see atleast a handful of people saying "This is the most troubled car I've ever owned." Not to say that the previous posters problems arent real, but that I guess some individual cars on the production line might just have inherited more likelihood for problems and that shouldnt reflect on the whole line of cars?
    2008 Grand Prix: Done: Intake, plog, zzp 2.5" catted dp, hv3 (SOLD)
    2004 Grand Prix GTP Comp G: Intake, headers, Overkill. Sport Edition Kv5 18x8 Soon to come Inferno Hood, SE Air Dam!

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