Reviewed By john b (Norton, MA) Reviewed for a 1996 GMC Yukon —1/6/2010 9:52 AM
the difference in my truck is immense the power and gas mieage increase is great
Reviewed By Rich L (COLLIERVILLE, TN) Reviewed for a 2004 GMC Yukon —7/12/2015 4:29 AM
My vehicle is over 10 yrs. old and the pick up and performance is a significant improvement. Tech guy at dealership says it takes the onboard computer a little while to learn the new changes and should improve performance. Haven't had a chance to compare gas mileage yet.