i was curious when i was reading how people are worried about CEL's or whatnot. but i was thinking when you put in hfc's, and probably headers, then of course u might throw a CEL, but i was thinking why not get a ecu tune from lets say technosquare and let them readjust the air fuel maps to get rid of the CEL. not to say you NEED to have ur ecu tuned just for that specific reason, just a food for thought that it would be a good idea to get a tune whenever you modify any exhaust/intake/engine setup.
