yes.. Iam keeping stock mufflers.. the Headers come with Hiflo Cats and connections for the O2 sencors. in Illinois they have a site that only test the on-board computer .. So if I don't throw a code I should be ok .. That cats are right after the long tube headers so I'll bet they will heat up pretty quick and not trip any codes.. Does anyone have the SLP Headers and did they throw a code??? I see
http://www.camaro5.com/forums/showthread.php?t=58363 has 100 miles so far with no tune and has not thrown a code....