A bone stock 2008 WRX with a stick, only 1500 miles on it, and me driving nice on it stall ran a 14.4 at byron last year. Now that is BONE STOCK and a stick. I would think with a good tune, and CBE I should be able to get that same car into the low 13's. Like 13.5 or so. So I would figure you should be just a few tenths slower with the auto depending on how good your tuner is.