Anybody have any experience with them? I bought one when bought my truck. It is repair advantage (gmac) it cost $2500 and it covers 3 years or 36k miles and covers just about everything. I am wondering how mod friendly they are? I just wanna do a turbo back exhaust but don't want them to mess with me if i have to use he Warrenty again.... Turbo and fuel pump took a dump 2 months after I bought it... It cost $2800ish to fix at the local stealership and I only had to pay $100 so I have already made my money back and I still have over two years of Warrenty left and don't wanna void it.