Well guys I'm looking for a 6.7, I have been looking into a new 2015 I can seem to find them around 50 grand around here, my worries are my tires and wheels will require a lift and from what I'm hearing a lift will void my warranty, has anyone had any experience with this? What are the older 6.7s like? what's the benifits of the new ones? Give me the run down guys