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Latest Customer Reviews
DiabloSport inTune i2 Tuner Reviews
Reviewed By Richard C (LIVERPOOL, NY) Reviewed for a
2014GMC 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.