07 nbs 6.0 max

[fastfreddy525]

im going to be installing a catback exhaust and a cold air intake on my nbs 6.0 max w/u7194 8r07 soon, do i have to change the 93 octane diablo tune even though we only get 91 out here .what should i do after ther parts are on ? would the truck relearn the tune? or would it be best to run a log and get the fueling right or get you guys to do a custom tune?

[jsk06c6]

If all you can get is 91 don't install a 93 tune. Stay with the 91 and then adjust your injector slope and PE tables.
Your truck will relearn with the new parts, odds are you'll be lean at that point, so make the adjustments.

[jimmybuckets]

You will notice the biggest changes up top...from 3.5k rpms up. At least I did with my 5.3l Silverado. Intake and catback really lets the tune do what its supposed to do a lot better. My truck was adjusted with the intake and catback on.

[mikel]

You should be OK with the 93 tune in this application, if you see any KR, go ahead and pull about 5-10 timing at WOT.

Thanks

[fastfreddy525]

does the u7194 tuner w/8r07 have a 91 or 93 octane tune or (diablo tune) mine only says diablo tune how do i know what mine has? i did have some kr with the stock diablo tune on my u7194 but i have been trying to only run only mobil 91, but these stations are hard to find . but my truck doesnt ping anymore and i havent changed anything? i had to pull some timing before when i first installed the diablo tune,but only 1% on the programmer, but it didnt run as good so i changed it back and run good gas and havent noticed any KR problems.