6.4 HP question

[smokeless_6.4]

how much power can a stock 2010 6.4 tranny/engine hold. I have a friend that has a 08 and he blew out 3rd gear with just over 120hp tune. i wanna rune the spartan DPF delete kit with their tuner. I just wanna know how much HP the stock tranny and motor will hold before having issues thanks

[forcefed6.4ford]

275 over stock if you don't abuse the truck. Ive got 160,000km on mine with no issues(tranny that is). I even pull my 37' fifth wheel with the 210 and 275.

[smokeless_6.4]

my truck has just over 150 miles on it so im not tryin to F*** S*** up YET. LOL i just wanted some opinions from people with stock trans and motor and any issues they have had thank for wquick response force

[superdutydixie]

hey how do you like the Trail Grapplers?

[08stroker250]

81,000 total miles, 47,000 Spartan tuned miles. I daily drive with the 275 tune, always have. Last year I daily drove with the 310 tune during beta testing from May until September. I have made several passes at the track and I have also sled pulled. I have done numerous transmission relearn processes, 4wd boosted launches, and burnouts. My tranny is still stock and drivable....somewhat lol. The 350 tune testing I did here recently took it's toll I believe. I have a Suncoast going in VERY soon. Should be in today as a matter of fact. Anyway, as you can see it took the 350 tune and some hard passes to really make my tranny start acting up. These transmissions are solid when the right tuning is installed on the truck.