Hey all. I have a 15 dmax and I have been reading up on programmers/tuners on here, but seems like a lot of people are saying that pretty much anything voids the warranty and/or the tuner doesnt actually help a whole lot. I have an extended warranty. Looking for something to increase throttle response and HP. Any suggestions out there for a plug and play programmer that can set the truck back to stock as well? Thanks in advance for the help!