Ok i went over to my mustang performance shop today were i got all my mods put on. Well i went there to get my manuel for the tuner, and it said inside that, u7140 application was for the v8 4.6 and no were on it sayd v6 4.0, is it the right tuner or does it just go with the v8 app?
thanks ahead of time guy!
sam

 

i have the U7140. It works. the software works for both V6 and V8. Trust me dude, you should have no worries. This is just an error on Diablo's part that they didnt update the correct info/literature in their tuner manuals where it SHOULD say that it works with 4.0's also. I've spoken with Diablo on the phone several times. They have been pretty helpful every time i've talked to them. good luck.

 

ok thanks alot!