Originally Posted by FloridaRam
BD is Bully Dog correct? Not to sound stupid just wanna be sure. Do you run a tuner yourself or know anyone who has run one in their 4.7 to know what type of gains to expect?
I run the BD on my truck, In the summer I run 94 Octane fuel on a 91+ tune, in the winter I run 91 Octane on a 87+ tune. as far a gains, your maybe looking at 10-15 on the 87 tune and 15 - 25 in the 91+ tune depending on your mods, most people will not even notice a 30+ gain, I mostly got the tuner for the shifting, truck sucked before I got the BD and it fixed the tranny shifting points, now I love the way she runs.