Reviews: Bully Dog Triple Dog GT Diesel Tuner - 40420

The Bully Dog Diesel Gt Tuner "40420" has by far been my favorite programmer i have had the liberty of using on my truck. I have tried many different brands and the Gt really stands out. Not only did it give me a incredible power increase with 2-4 MPGs better but it also gave me all my necessary gauges needed to keep the truck safe. This tuner is very user friendly. The install could not have been easier just plugging into the diagnostic port and simply hitting install. Not only was the install easy but changing power levels was as easy as pushing up or down being able to go from TOW to EXTREME in seconds! I would highly recommend this product to anyone who is wanting a good overall programmer/tuner to really wake the truck up without causing any damage. Thanks Bully Dog!

put the triple dog GT on 03 dodge ram 3500 CTD, easy set up, one wire to fuse box! the hardest part was routing wires and trying to decide where i wanted to put it on the window... great power gains, as well as 1-2 mpg(19.9mpg) increase while turning 35s and speeds 70-75. the unit is a little small, about the size of my BB Curve, but not to small where its hard to read... driving coach is nice to have, makes good driving like a game. if you really follow the DC i would see mpg gains of prolly 3-4mpg maybe more... this is a must have prduct

It added 3 miles per gallon and added much needed horse power for pulling my camper.

Great Milage

Just purchased this programmer for my 06 duramax, very impressive power gains especially in extreme mode. This is the only programmer I have ever had so I dont know if there is anything better but I can break the tires loose at 45mph on dry pavement in extreme mode so I think thats good enough. I am getting 4 to 6 miles a gallon better than stock. The display shows you everything you need besides the exhaust temp but you can buy the sensors for that seperate.