Not sure if this is all ready discussed on here, but I couldn't find it. My 2012 Challanger SXT has had no power and backfired a couple times twice in the last two weeks. Both times it happened was right after I started it and first took off. It has not really been that cold either time either. Any help would be appreciated. I'm going to take it into the dealer later next week and talk to them about it but I'd like to here from someone else that has had this problem before I do.