Reviewed By Kelly N (Cortland, OH) Reviewed for a 2017 GMC Sierra —2/20/2018 6:02 PM
Great for adding more power and gas mileage
Reviewed By Robert P (PRATTVILLE, AL) Reviewed for a 2000 Ford F-150 —9/14/2017 4:06 AM
Easy to use. Speedo calibration is a bit of trial and error since inputting tire size didn't work. Used GPS and adjusted size until speedo was accurate. Engine tune works well and increased performance.