first off, ive got a 2002 Grand prix GTP. 3.6 pully, headers, 3" downpipe, u-bend delete, cat delete, zzp pcm, and cold air intake. now, when i bought the car the resonator was gone. so as it sits, with stock mullers it sounds like crap.ive got borla sx mufflers to put on now. anyone know how borla mufflers sound without a resonator? or where i can buy a res that will make it sound good. should i just use a stock res??
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