Reviewed By john f (Stratford, CT) Reviewed for a 2010 Mercury Grand Marquis —12/14/2013 6:34 AM
Did download without any additional changes yet. Performance has increased. Also sounds better. Very easy to do.
Reviewed By Angel V (Lancaster, PA) Reviewed for a 2016 Ford F-150 —1/18/2017 8:49 PM
I installed the product my truck with 87oct and gain some power but no MPG, Switch to gas saver mode,did not feel any change over the 87oct. I finally put it on 91 Oct.and yesI felt a lot more power and better acceleration and torque, the only thing I have felt strange is that when I go slowly it gives me a weird squeal in transmission and I'm worrying a little. This product is very good in Performance Setup,for 87 and gas saver option I prefer let my truck in Stock Setup. IMOP.