Who ever installs these will need to make reducers for your pipes into the mufflers since stock pipes are 2.25", but they should work. I don't think you can expect much increase in sound with these with all else stock. I could be wrong. It could be what you are looking for. I know I first did dynomax super turbos on my wife's Monte Carlo and it was a waste of $$ until I had the resonator removed, but the Monte resonators are much bigger and quieter than the GP. Keep us posted.
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03 GT, STB, GM HD sway bars, 35% tint, GE893(37watt)fogs, Flowtech Terminators, 180 T-stat, ZZP DP & PCM, Ceramic PLOG & Crossover, 18" glasspack, 2007 17" Mustang Bullits 235/55/17 Pirelli PZero Nero, 12" R1 D\S rotors, gutted air box, GTP radiator