2013 - 2018 Ram 6.7L Cummins | Engine Tuning by PPEI

I'm not sure I did the right thing.

After the tune my pickup ran extremely rough and started dying. My mechanic is trying to work with PPEI to resolve the issue but so far his frustration is only growing and I'm considering returning everything to stock. It's difficult to stomach that I may have wasted a lot of money!

Great so far(60hp+trans)

Loaded the tune about 2 weeks ago, still early in the transmission relearn, but so far my mileage is up 4 mpg and I have regained what power I lost coming from sea level up to 7,000ft, so we'll see what it's like once I start getting some mileage up after the tune.

5 stars for top notch product and support

I work for a very busy diesel repair and performance shop in the pacific northwest, we have used PPEI for emission compliant tuning several times and have been happy with not only the performance of the trucks but also the support from PPEI staff, they are extra responsive and knowledgeably equipped to answer any questions.