Another GXP geezus these things are popping up all over!
Welcome whats the plans for the GXP?
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well, thats what I'm here for..I'm not too sure how big the aftermarket for LS4s is, all I really see is intake swaps and cams (which I'll prbly do) but I feel like there is more that can be done
Welcome! DO EXHAUST!
That is going to be my first "mod"..just don't know if I wanna straight pipe or actually get an aftermarket system
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