I am new to the great site here. Thanks in advance. I have a 2008 1500 4x4 5.3L silverado on order from the factory. I want to keep my mods to a minimum at first, but one thing I do want to do is exhaust mods. Thoughts I have are SI/DO CAT BACK sys, and possibly an aftermarket CAT. Looks and sound are on my mind but more inportant is not to lose any performance (low end I have heard). I am concerned with California emissions and warranty issues. Any feedback is appreciated. Thanks. very much.
Posts by JH81
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