I was looking to increase Performance for my Tundra without Getting any expensive performance add ons I found that the bully dog Programmer was the best solution for me. after putting it in I really like how my Tundra launches. Awesome product i would recommend to anyone.

The 40440 was well worth the money it is super easy to use it sets tire size and gear. I havent re-geared my jeep yet but this tuner so far has given me more bang for my buck and more power. more importantly i didnt have to sacrifice any mpg on my gas