Are today's tuners on diesels reliable and trouble free? If properly installed, does more power negatively impact the longevity of a properly maintained engine? Thanks in advance. Mike
A better question might be are today's diesels reliable and trouble free? You'd better hope so because in most cases, if the dealer knows you added a tuner, and they will, you warranty will be void on engine work.
Aside from that. I personally wouldn't use one. Trucks are expensive and I want mine to last as long as possible. It's got so much power stock I don't see the need to increase it at the possible expensive of shorter engine life and/or broken pieces.