Original motor. Not sure why the MR2. He has a boosted s2000 for road racing, but the MR2 is for autocross. I guess the MR layout is better, but honestly, I'm not sure I believe the GT22 is most commonly used on high power snowmobiles and bikes (like a Hayabusa.)
Last edited by NFRs2000nyc; 12-20-2012 at 10:49 PM.