I think ive about decided when i go to swap heads ill be upgrading the exhaust too, i think i may do new headers anyway.. right now i have the coated pacesetters and at the collector they are already starting to rust and get these weird type of stains on them that wont come off.. i want to keep underhood heat down (thats why i bought coated ones) but the next set i put on there i want try some SS ones for longevity.. is there a pretty nice difference in underhood temps between ceramic coated and SS headers?