ZZP Resonator Section for Catback Size:3 Inches We can confidently say this

We can confidently say this is the very best gauge pod available for the 2 Door Cobalt SS

This is a direct fit stock replacement but oversized Cobalt heat exchanger

This is an "LS" style valve spring retainer

There used phenolic to shield the blower IC from engine heat with fantastic results

ZZP Resonator Section for Catback Size:3 Inches We can confidently say thisThis is our 3 chambered quiet resonator for those who already have our catback exhaust system and want to clamp it into your existing system. Choose from the drop downs for 3" or 2. 5". The 3" option will have a 3" bolt in flange and a 3" exit (intended for our 3" catback). The 2. 5" option will have a 2. 5" bolt in flange and a 2. 5" exit (intended for our 2. 5" catback). If you are handy and can weld yourself please look at our resonator in the