I contacted Jody and he changed the transmission tuning so it downshifted the way I wanted it to downshift. When I first installed the chip, I really didn't like the way it shifted from 4th - 3rd. If I ever need a new tune for mountains or towing more weight, all I need to do is contact Jody and he will email the tune to me within a few hours. I did this because I travel with my business restoring cemeteries and I tow different weights. With the F6, Jody can email tunes to me and I can upload them onto the chip myself. I first purchased the F5 chip and then returned the F5 for the F6. The shift points are very smooth and when it shifts, the truck just wants to go go go. Jody at DP did a great job setting up the tunes and shift points. The chip made a night and day difference and my truck drives like a totally different truck.

I purchased the 60 tow - 80 Daily and 100 HP performance tunes. I have a 2000 F350 with a 7.3 and a DP-Tuner. So long story short, just because it's 'open source,' doesn't mean you'll be able to put other tunes on it.

I have yet to call other tuners to ask, but am planning to. They just tell you they won't tune on it. I have an idea why they won't do it, but they won't say. I talked to a non-DP tuner (won't say who), and they basically told me they won't tune on it. The 0 position is hard to figure out how to get it out if you're not aware how it works (good for anti-theft). I was thinking of getting a Hydra, but the no-start feature is just another position, and frankly I'm not crazy about that. I was thinking of buying a F6 now that it's open source so I could use two different tuners on it and try that route. I tried a TS chip recently (not gonna get into the 'who's tunes?' discussion), but really did not like the rotary switch I suppose because I was used to the DP controller. Now that I have done some performance upgrades, I've gotten tired of pulling my chip out and sending it back. I have had a DP F5 for about 4 years and have come to like the usability of the controller, especially the 0 position no start feature.

Dp tuner f6