2019 - 2024 Ram 6.7L Cummins Aisin | Transmission Tuning by PPEI

Asin tuning

First of all, these guys know what they’re doing! Never did I have a doubt while they walked me through the process, and when I did have a problem, ( my EZLynk needed the unlock code) they knew exactly what to do and actually logged into my computer and did it for me. The trans does exactly what it’s supposed to do now. Shift smooth and put the power to the wheels. I pull 20k from NJ to Co and all over the mountains there. Not once did my trans get over 160. It worked flawless. Thank you PPEI!

2022 Ram 3500 Aisin Trans Tune

Stock truck with the mushy laggy shifts from factory. The PPEI trans tune is a game changer, shifts are smooth and stays in the power much better. Feels like a different truck. Also very helpful and responsive for help while flashing tune. Highly recommend.

Great tune for heavy pulling

After deleting my 2022 ram 3500 the truck had less power then it did stock and the guys that programmed ecm did trans tune, with the Aisin transmission it ripped first day then very next morning truck was at 1/2 power. Ppei got the trans back right and my 3500 is back to pulling hills like no other with my 45’ trailer and 30 4x5 round bales on it.