Part 3: Tune it and rip it!
All Siemens DME options for the M5X engine platform are plenty capable to handle boost so you don't need to go standalone. The main ones that are tunable inlcude MS41, MS42, MS43, and MS45.1.
To purchase an MS42 turbo tune from BE RACING TUNING, please click here.
To purchase an MS43 turbo tune from BE RACING TUNING, please click here.
MS4x.net is a great resource if you'd like to attempt tuning yourself.
I am made 400WHP on my eBay setup and am aiming for 500WHP on my new setup. I have been on full E85 since October 2019. The stock fuel lines are perfectly fine with it; when I went to change my fuel filter, the fuel lines looked good as new.