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
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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.