Well this weekend I gutted my cats and boy did it ever help my car, it sure pulls hard now through the entire rpm range. But now im getting a bunch of smoke. Its hard to tell what the color really is because of all the really windy days weve had lately. It looks white but it doesnt smell like coolant. It smells like and overly rich car. No sweet smelling coolant and I know what that smells like. Its not black and its not blue. black is usually rich and blue is usually oil burning. The car doesnt miss ever and I never have any water come out the tailpipe even on a cold start up. Im thinking about ordering a new HG anyway and replacing it due to my ARP studs coming loose incident (and dont say they dont) but im really confused on what to do.