Redline Car Club member @7LTR_Z does a cold start of his '06 Z06 with AR LT headers, X pipe, corsa exhaust and no cats.
2001 Z06 idle & rev
2001 Corvette Z06 Futral motorsports F13 cam 236/232 595/585 lift on a 111 LSA plus 4 degree advance LT headers w X pipe GHL magnum bullet mufflers ...