Starting to tear stuff off the GTO in preparation for the new parts. First is pre-fitting the Hooker headers and 3" Torque Tech exhaust system. I have both 2 chamber and 3 chamber Flowmaster mufflers. Im gonna take a guess that the 2 chamber are somewhat louder than the 3's. Anyone have experience with both and if so, which ones should I bolt on? Any real world experience is appreciated.
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