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 Matt E (MIDDLETOWN, MO) Reviewed for a 2012 Dodge Ram —3/1/2015 9:07 AM
This was by far the best mod I have bought for my truck. Totally woke the 5.7 hemi up! Installation was a breeze and I got to turn the dreaded MDS off so no more drone. Took maybe 15minutes to save the stock tune and program the new tune. Totally recommend this to any dodge/ram owner.