I think the difference is bigger engine,primer plunger and thats it.Because you can get the MT-2 in either yellow or Red.I got the yellow MT-2 and it is an aw some for just all around fun and parts are cheaper even-though I never broke anything.I have it up for sale on here.
http://www.rcuniverse.com/market/item.cfm?itemID=42494
Well hope that helps.smaerd58