I'm setting up my car ('94 Z28) for E Street Prepared (SCCA Solo II Rules) and can basically rip out my exhaust and start over. Does anyone recommend, from header to y-pipe, to cat to cat back system, a complete system that installs with a minimum of custom work?? I do want to keep the cat (we have emission testing here) but need a system that gives me the most power.

I can just do bolt on's so if you have any more suggestions, they'd be welcome!