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Cat-backs on the C6 vettes did nothing for power only sound. The camaro stock exhaust could be more restrictive. I would have to wait till somebody did a comparison on a dyno. My thoughts for now is just do a cam with headers, electric cutouts with stock mufflers. Headers w/hiflow cats and deleting the resonators should increase the sound.
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07 Trailblazer SS
13:60 @ 102 mph.
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