• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Recent content by DrParmeJohnson

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    Exhaust Decision Help

    Hello all, Just trying to decide what to do with my 07 GXP’s exhaust. Presently, I have the 2.5” zzp, stock resonator and, what I believe to be, turbo style cherry bomb mufflers. I didn’t put them on, came on the car when I got it, so again, not sure. So, I’m trying to figure out if I would...
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    07GXP - P0030 & P0443 Code Help

    Hello, As the title suggests, I need some help with a P0030 (Heater Control Circuit Bank 1 Sensor 1) and P0443 (Evaporative Emission Control System Purge Control Valve Circuit) on my 2007 GXP. It has a Cold Air Inductions CAI, ZZP 2.5" DP, and a custom, 93 Diablew Tune. These codes have only...
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    Question about GXP transmissions

    Hello, I’ve seen a lot about mods people do to their GXPs and some gain a pretty good sum of HP (i.e. turbos). But what needs done to make the tranny take that? Do you swap it for something else or is there an aftermarket beef-up solution or what? And if it is a swap, what fits or what’s the...
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    2007 GP GXP - Tranny rebuild

    Thinking about doing the necessary transmission/TC rebuild on my GXP @107k miles. The shop I’m going through quoted somewhere between $1.9k-2.7k and I’m not sure if I want to go through with it. I’ve got the car on a loan and I do love the car, it’ll just be a bit tough coughing up the cash for...
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