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 Jaime A (SAN ANTONIO, TX) Reviewed for a 2014 Ford F-150 —7/21/2015 10:07 PM
I chose to purchase this product after doing extensive research and countless comparisons to other competeing products. The price seemed fair after I factored in all the discounts I saved over $60 with the sale. I tested my 0-60 and it was 9.5 seconds when in stock programming. After changing to level 3 which is the program recommend for maximum performance my 0-60 shaved A full second to 8.4 seconds. Gas has improved from 14 mpg to 15 mpg in the last month and 1,500 miles. A custom tune is best