I've managed to leave my truck stock since I bought it in 2015. Recently I read a post where someone mentioned the disaster kits for the 6.7's. I looked into them and naturally I started thinking I need to do this. I ended up ordering the S&S Diesel kit from someone on Amazon. It's a pretty nice kit. I didn't have to cut anything. Everything popped into place with stock fittings. It took about 4 hours start to finish. But I'm sure someone that knows these trucks can cut that way down. This was my first time getting this deep into a diesel. Thankfully my metering valve was clean so the pump is good so far. I like how the kit has a filter on the return line so I can watch for particles.