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alright decisions like this always suck. i like the sound of it now with just the cat back LMII's what if i just get the mac o/r prochamber and leave the stock headers? Sound difference? Is it possible to match that to the stock headers? Later on will the longtube match up IF i decide to do them? thanks.
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03 GT
MAC o/r Prochamber
SLP LMII's
MGW Shifter
You will need o2 extensions too if you have an 04 GT because for 04 they moved the rear o2 sensors way back on the 04 GT's. The stock midpipes from 99-03 vs. 04 look way different, but will fit either car the same.
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