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 C (LIVERPOOL, NY) Reviewed for a 2014 GMC Sierra —8/16/2017 2:28 AM
Before installing the 87 oct tune on my 2014 GMC Sierra, the gas pedal was stiff and the truck had a hard time getting out of its own way. Now it drives as it should have from the factory! More off the line acceleration and torque, plus a noticeable difference while towing my large camper.