Reviewed By Mick B (Rockford, IL) Reviewed for a 2006 Chevy Silverado —1/18/2015 9:53 AM
enhances power but not much for gas milage. definatly made improvement over stock. Worth the price.
Reviewed By John W (Royse City, TX) Reviewed for a 2006 Chevy Silverado —5/9/2014 7:20 AM
I'm very impressed with my Bully Dog programmer. While in "Performance" mode I get the best fuel mileage. On a road trip from Dallas to Hot Springs, I got 22.5 with the cruise set @ 70 mph. I'm driving a 2006 Chevy Duramax with a K&N Filter kit, 4in straight exhaust pipe. I did have to set the Bully Dog tire diameter size to 32.25 to finally get the correct speed for my 33.25 diameter tires.