I think it is appropriate to tell about my experience with quadzilla chips. The chip started giving me trouble about a month before the warranty was up. I sent it to them and they sent it back supposedly upgraded. When I put it on the truck less than 2 miles down the road my truck went into limp mode and threw a code. (p0237) So I called them and they said they would send me a new harness. They also billed my credit card $35. 00 dollars 2 weeks later, still no harness. I have recieved some pm's from other members that went through this also.