Reviewed By John J (LOCKPORT, IL) Reviewed for a 2012 GMC Sierra —12/5/2016 12:21 PM
This was my first time using a tuner and it was very easy to use and certainly made a difference in performance.
Reviewed By Michael P (Chehalis, WA) Reviewed for a 2006 GMC Sierra —9/23/2016 6:58 AM
After a month of solid research i decided to go with Bully Dog. Very easy install, excellent graphics, produces the best information from your vehicle. The Tow tune turned my sluggish truck into a sports car like feel to the drivetrain, great shifting, and perfect use of the 5.3 power band. If you have the chevy trucks made between 2000 and 2007 (classic) you should have this tuner.