The following is my experience with tuning a 2017 Ford F350 6.7 Powerstroke Diesel.
I originally tuned my truck using PPEI tuning and the Ez Link box. I installed their 75hp and Soft Shift TCM tuning. All seemed well however after a few months I began to notice that the transmission would shift funny once in 4th gear.
The truck did not shift correctly once in 4th. It would go into 4th then when the torque converter locked up it would lock very hard, then 5th and 6th were more firm than usual.
This shifting problem seemed worse at slower speeds. However if I were accelerating to speed on the highway the shifts were fine. Only at low speeds is when it would lock and shift way too hard. Like I was being punched in the gut.
I called PPEI and tried to explain the situation with little help. I switched to a 0 HP tune thinking this would help but it didn’t. At their 0 HP tune it would fall on its face at WOT. So I switched back to their 75 hp tune. PPEI sent me a new 75hp tune that had TCM tuning included. It was their 75 hp version 2.4 and the TCM tuning was very firm. At low speeds from 1-2-3-4 were so hard I felt again as if I was being punched in the gut. However when accelerating faster it was ok.
I called PPEI again for about a week and all I got was “Just switch to the SOTF 4.1 version and all will be corrected”. Well the problem with the SOTF 4.1 version is that I do not have the SOTF switch nor was I about to buy the switch. I wanted a single tune with the updated TCM tuning but they would not help me. Also I got mixed information from their team. One guy said that the 2.4 version did not have TCM tuning even though it read ECM and TCM tuning in the profile. And another guy would say yes it had the TCM tune included in the profile. But then they would keep referring me to the SOTF 4.1 version. I again refused to switched to the 4.1 mainly because they were trying to force me to switch and I didn’t want to. I wanted them to fix their single tune profile.
During this week of back and forth I decided to call GDP tuning. And let me tell you what, GDPs customer service was outstanding. They did not once try to sell me one of their tunes. They said if we can help you fix what you already have, that is what they would prefer to do. They were better at explaining to profile tunes, how they work and all the different characteristics about the ECM and TCM tuning. Where as PPEI would not share anything, as if it was a secret and no one could know, however if I switched to the 4.1 version all will be well. Again all I got from PPEI is “switch to the 4.1 version”.
After that week on a Friday an hour before GDP closed I decided to switch to GDP after the horrible customer experience with PPEI. Even though there was an hour before they closed GDP through one of their vendors got me the tunes and worked with me to ensure I uploaded everything correctly. GDPs customer service is top notch and much more friendlier and no so arrogant as PPEI.
This is how I would describe GDPs tuning vs PPEI. GDP are Powerstroke guys and PPEI are Duramax guys. I’ve been running the 75 hp tune from GDP for over a month now and its light years better than PPEI. The Tune I’m running is their 75 hp version 2.31 that includes TCM tuning and its far better. The TCM tune is smoother, less firm, more enjoyable to drive at low speeds but firm enough for WOT accelerations.
However right now I’ve decided for longevity purposes I’ve reduced the Tune to GDPs 0 HP tune and the Ford OEM TCM tuning. And right now it's the best of both worlds. I really like the Ford Factory Transmission tuning, its smoother, less violent (compared to PPEI) and more seamless. I wanted that factory shift feel and not the firm, hard punching, less enjoyable driving feel. PPEI trans tuning is horrible, I’ve read lots of complaints about PPEI trans tuning yet I ignored those reviews because I thought this “Well its PPEI, its Kory Willis, he is well known in the Duramax world so it must be the best, I’m not going to believe those reviews”….Well I should have went with GDP in the first place instead of spending the money to switch. Although at the same time I’m glad I went with PPEI first to gain that experience. I can say that I’ve ran both PPEI and GDP tuning, where as some people will support one and put down the other without any experience running the other tune.
I can say from experience that for the 2017+ 6.7 Powerstroke ECM and TCM tuning from a PPEI and GDP stand point that GDP is the way to go.
Right not the GDP 0 HP and Ford OEM TCM tuning the truck actually feels more lively than stock, not has fast as the 75 hp tune but faster and more responsive than stock. I have read that some say the 0 hp tune is a dog and super slow. Well that is not the case, its faster and more responsive than stock but yes slower than the upgraded horsepower tune but overall pretty good.
I'm not trying to put down PPEI but I was very VERY upset with their customer service to the point of spending another $900 bucks to switch to another company. If they would have just worked with me and try to rectify their programing instead of telling me "just switch to the 4.1 version" then I would most likely still be with PPEI. I'm sure their stuff is great for the GM guys but Fords....not so much. I will say that PPEIs 75 hp tune is very good, smooth and lots of power, but their TCM tuning needs some work.
I originally tuned my truck using PPEI tuning and the Ez Link box. I installed their 75hp and Soft Shift TCM tuning. All seemed well however after a few months I began to notice that the transmission would shift funny once in 4th gear.
The truck did not shift correctly once in 4th. It would go into 4th then when the torque converter locked up it would lock very hard, then 5th and 6th were more firm than usual.
This shifting problem seemed worse at slower speeds. However if I were accelerating to speed on the highway the shifts were fine. Only at low speeds is when it would lock and shift way too hard. Like I was being punched in the gut.
I called PPEI and tried to explain the situation with little help. I switched to a 0 HP tune thinking this would help but it didn’t. At their 0 HP tune it would fall on its face at WOT. So I switched back to their 75 hp tune. PPEI sent me a new 75hp tune that had TCM tuning included. It was their 75 hp version 2.4 and the TCM tuning was very firm. At low speeds from 1-2-3-4 were so hard I felt again as if I was being punched in the gut. However when accelerating faster it was ok.
I called PPEI again for about a week and all I got was “Just switch to the SOTF 4.1 version and all will be corrected”. Well the problem with the SOTF 4.1 version is that I do not have the SOTF switch nor was I about to buy the switch. I wanted a single tune with the updated TCM tuning but they would not help me. Also I got mixed information from their team. One guy said that the 2.4 version did not have TCM tuning even though it read ECM and TCM tuning in the profile. And another guy would say yes it had the TCM tune included in the profile. But then they would keep referring me to the SOTF 4.1 version. I again refused to switched to the 4.1 mainly because they were trying to force me to switch and I didn’t want to. I wanted them to fix their single tune profile.
During this week of back and forth I decided to call GDP tuning. And let me tell you what, GDPs customer service was outstanding. They did not once try to sell me one of their tunes. They said if we can help you fix what you already have, that is what they would prefer to do. They were better at explaining to profile tunes, how they work and all the different characteristics about the ECM and TCM tuning. Where as PPEI would not share anything, as if it was a secret and no one could know, however if I switched to the 4.1 version all will be well. Again all I got from PPEI is “switch to the 4.1 version”.
After that week on a Friday an hour before GDP closed I decided to switch to GDP after the horrible customer experience with PPEI. Even though there was an hour before they closed GDP through one of their vendors got me the tunes and worked with me to ensure I uploaded everything correctly. GDPs customer service is top notch and much more friendlier and no so arrogant as PPEI.
This is how I would describe GDPs tuning vs PPEI. GDP are Powerstroke guys and PPEI are Duramax guys. I’ve been running the 75 hp tune from GDP for over a month now and its light years better than PPEI. The Tune I’m running is their 75 hp version 2.31 that includes TCM tuning and its far better. The TCM tune is smoother, less firm, more enjoyable to drive at low speeds but firm enough for WOT accelerations.
However right now I’ve decided for longevity purposes I’ve reduced the Tune to GDPs 0 HP tune and the Ford OEM TCM tuning. And right now it's the best of both worlds. I really like the Ford Factory Transmission tuning, its smoother, less violent (compared to PPEI) and more seamless. I wanted that factory shift feel and not the firm, hard punching, less enjoyable driving feel. PPEI trans tuning is horrible, I’ve read lots of complaints about PPEI trans tuning yet I ignored those reviews because I thought this “Well its PPEI, its Kory Willis, he is well known in the Duramax world so it must be the best, I’m not going to believe those reviews”….Well I should have went with GDP in the first place instead of spending the money to switch. Although at the same time I’m glad I went with PPEI first to gain that experience. I can say that I’ve ran both PPEI and GDP tuning, where as some people will support one and put down the other without any experience running the other tune.
I can say from experience that for the 2017+ 6.7 Powerstroke ECM and TCM tuning from a PPEI and GDP stand point that GDP is the way to go.
Right not the GDP 0 HP and Ford OEM TCM tuning the truck actually feels more lively than stock, not has fast as the 75 hp tune but faster and more responsive than stock. I have read that some say the 0 hp tune is a dog and super slow. Well that is not the case, its faster and more responsive than stock but yes slower than the upgraded horsepower tune but overall pretty good.
I'm not trying to put down PPEI but I was very VERY upset with their customer service to the point of spending another $900 bucks to switch to another company. If they would have just worked with me and try to rectify their programing instead of telling me "just switch to the 4.1 version" then I would most likely still be with PPEI. I'm sure their stuff is great for the GM guys but Fords....not so much. I will say that PPEIs 75 hp tune is very good, smooth and lots of power, but their TCM tuning needs some work.
