My 2000 Audi S4. I've had it for about two years now. Finally ordered a handful of things to put in K04 turbos. Still need quite a few things. I have friends running similar setups to what I am going with, they are making 435whp/435wtq with meth. I am thinking about running E85 since it is close and Wil recommends it. We'll see though, people with E85 and meth tend to see closer to 450-470. That's close to rod bending numbers for these things though. One of my friends has 260k miles on the stock motor. Running his K04s at 420whp for the last 110k miles.