Reviewed By William M (Fair Oaks, CA) Reviewed for a 2014 Cadillac CTS —8/18/2015 10:30 PM
Immense improvement in performance on initial tune. I am really quite pleased.
Reviewed By Richard B (Gainesville, GA) Reviewed for a 2013 Ford F-250 —12/21/2016 5:15 AM
Got this to help improve gas mileage for a F250. So far I still get the same gas millage as before I install it. I have driven about 300 miles wit no change. Pulling camper this weekend hopefully it help with this. If not it was a waste on money