So is the MPT tune something only a truck garage should do if you go with the kit? I'm in South Dakota and just want to be sure my Gen II is ready for winter in the event i feel any power loss...Wondering if the warranty could be voided if the dealer discovers you've done this type of mod??
You can buy the NGauge and MPT tunes online without going to a shop. Installing a new tune is pretty easy even if you are not technical. A lot of folks are also running a bigger aftermarket IC which can also be done at home, but it is a much larger job involving a couple hours of work. If you are not mechanically inclined, I do not recommend doing it yourself.
MPT gives you your factory tune, so you can return it to stock before taking your truck into the dealer. They will be able to tell your truck has been flashed "X" number of times, so the decision is yours if you want to take it back to stock every time you have it serviced.
The warranty topic is a major discussion, but it is really up to your servicing dealer as to how they will treat you when your truck is tuned. Some will work on your truck no problem, others will balk at fixing things that "might" be related to the tune. The way the laws are written, they have to prove it is the fault of the tune before declining a warranty claim, but there are many stories that show this is not always the case with certain dealers.
