I've run a few versions of it. The 2Di one is pretty easy to set up and run. Easier then a stock system. I currently run the 4Di system and its not so easy. If you motor is near stock, I would just swap a stock system onto it and go. My motor is overbuilt so I run the 900 cfm version. I spent a few weeks tuning the fuel map and it still runs rich untill it warms up. Since I got out of mud racing, I've been thinking about detuning it way down. If I do this, I might just swap on a stock system and go. Or the 2Di system again.