I installed a Pedal Commander on my 2016 diesel Ram about 2 months ago
I bought it brand new on e-bay with best offer bid of $235
I didn't want to make it a race truck or ruin drivability and have it set on the milder city mode +2.
I zip tied the controller out of sight way under the dash and if needed control it via their app installed on my phone
I have noticed much improved bottom end power especially during take off.
No issues or engine codes so far....I am happy with it.