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 Derek W (GOSHEN, IN) Reviewed for a 2000 Chevy C/K 2500 —12/19/2014 2:03 PM
I have heard people whine that tuners don't do anything for gas trucks. Well don't listen to them! This thing really woke up my 5.7L Chevy and really snapped up the transmission. Quick, firm shifts, and just smoother, faster acceleration. No, it won't add 100 horsepower, but it definitely makes a noticeable difference. Also the towing mode really made a difference when i hooked up to a large trailer.
Reviewed By Dan N (Stayton, OR) Reviewed for a 1999 Chevy C/K 1500 —12/18/2014 7:43 AM
This is the first time I have used this product. It was easy to install and it has given my 1999 Silverado 1500 quite a bit more pep. We will see how things progress over time. Excellent customer service from this business. I will come back in the future.