Reviewed By jonpaul y (Dover, FL) Reviewed for a 2002 GMC Yukon —5/28/2011 10:31 AM
put it in my truck right away the improvement was great the fuel improvement was about 2 to 3 mpg and proformance was great.
Reviewed By drake l (Saint Paul, MN) Reviewed for a 2001 GMC Yukon —5/13/2018 4:19 PM
I was a little sceptical about buying this tuner because it was fairly inexpensive. After receiving it and trying it out I'm amazed how well it works for my 2001 denali. I tuner the mileage saver and so far I'm getting at least 2.5 miles to the gallon better. Can't wait to try the other functions..... If I were you I'd buy one