Reviewed By RICHARD J (Parachute, CO) Reviewed for a 2005 GMC Savana —7/13/2014 9:25 PM
Big difference in power. I get 3 to 4 mpg more when using performance level.
Reviewed By Jorge R (Fort Worth, TX) Reviewed for a 2014 Chevy Camaro —2/6/2017 9:24 PM
After installation I can feel a big difference. I have a 2014 2 SS L99 auto and no more 4 cylinders. The program is on the 93 octane and shift firmness plus 25. I raised the rpm plus 500 and Loving it. I recommend it to anyone wanting to remove the 4 cylinders, while increasing horsepower!