Reviewed By Bryan H (Port Wentworth, GA) Reviewed for a 2008 Toyota Tundra —5/30/2019 12:21 PM
I read many reviews on this calibrator before my purchase. I decided to buy and install the Hypertech Speedometer Calibrator. I programmed the unit for my particular vehicle, a Toyota Tundra with 35" tires. Since the installation, my truck no longer surges while in first gear, maintains consistent rpm's on the highway, and performs better than prior to the installation. Minimal fuel mileage improvements, but worth the purchase.