sixshooter_45
2019 Ruby Red Metallic SC, 3.5 L Twin Turbos.
Because of the warranty implications. Tunes on an engine will almost invalidate any claim that's engine related. It's a HUGE gamble. As far as to benefits...I have a tune and have since de installed it. I'm not that impressed. It certainly makes a noticeable difference but not so much so that I just have to have it. The truck is plenty powerful without the tune and because most people drive their truck daily on the street the loss in fuel mileage isn't worth it. Some people need every last ounce of HP/TQ they can get but for me 450/510 is plenty plus not having to worry about the extra stress on engine and drive train parts that weren't designed for the extra HP and the warranty concerns. I'm just saying make sure that it important to you and make sure you don't care about warranty claims being denied before going down the tune path.
I could be wrong but it sounds as though you may not have had one of the better tunes that are available for this truck.
I only mention this because you stated you weren't that impressed with the extra power and the loss of mpg, however, quite a few folks have mentioned that they love the extra power and are getting better mpg, if they keep their foot out of it, and are very impressed with that particular tune/tuner.
I agree about the warranty issue which is why I haven't jumped onto the tune scene yet as I have a 125,000/8 year ESP warranty and should down the road I need it I'd be screwed which could end up being very costly.