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 Todd J (SEAL BEACH, CA) Reviewed for a 2006 Ford F-150 —3/26/2015 8:59 PM
Good product overall. Transmission firmness feels like mild shift kit. When clearing DTC's I had P115E. Was necessary to clean throttle body, but worth it. Truck has good power, and idles smoother than it has in a very long time, 110,000 current miles on vehicle.