80-tow for trailer less than 8,000 pounds or less, or 60 tow for trailer of 8,000 to 10,000 pounds.Ģ. If I were going to install a chip today, I'd go with the plain DP-Tuner multi-position chip and have at least 4 tunes with a tune-switcher that DP-Tuner sells.ġ.

I had a separate exhaust brake, which is required in hills or mountains. I also had 80-economy but it didn't seem to offer any advantages over 80-tow, so I usually just left it in 80-tow all the time. 80-tow was perfect for towing my 8,000-pound 5er on the flats or in the hills and mountains. This was my experience.Back when I still had my 7.3L, I had DP-Tuner tunes in an Edge programmer. Irregular idle (hi-lo), unintended acceleration at Idle with brake applied, surging with cruise control, no TC lockup, no coast clutch engagement, hang shifts, extremely hard (sound like something broke) up shifts, hi ICP, two sets of inj Orings, one hpop hose, very heavy smoke output couldn't touch throttle without fogging out 3 lanes of traffic, turbo lag while under boost ect. Had this adjusted out a couple of times both sometimes on reburns you got it right back. Extremely sensitive throttle( first 1/8' was 0-100%). Then you add up the shipping both ways plus addition charges for adjusting for mods. But everytime came with a new mass of issues.

I probably have the most expensive F5chip sitting on the shelve anyone has ever seen. There was only one time they were remotely close to me for live tuning and it was canceled shortly before. They were too far for me to drive and out of the 7 years of owning the chip. If you are truely wanting to run DP tunes. My advice to you would be to get a chip that can be updated by USB, Wifi or do live tuning from the start.

Dp tuner 7.3 install