Hi. I recently installed a Gibson slip-on (with a turn-down tip) on my bone stock 2010 T2. I know.....Muzzys........now that that is out of the way.....the Gibson added no power, but I didn't care. I was just tired of the sewing machine sound the stock exhaust makes. Anyway.....I am having an issue with a major backfire on decelleration now. Not popping, but, BANG! Should I be looking at Fuel controllers, or what do you think could be causing the backfire? Seems to run great otherwise.