Did 4.08s on mine and SRM was totally off, very noticeable. and quite annoying. Blips were off by a fraction of a second and simply turned it off until Ecutek tune. Tune took care of it and it is fantastic. 4.08 makes it funner
Maintaining the same driving style, my mileage dropped by 4/10s of a mile per gallon. Overall, a great mod for those staying N/A.