Good choice Savage. That mugen will rock and with the novarossi engine it will do 45mph, how do i know? i have the issuse of rc magazine where it is reviewed. The hyper 7 with a 21 8 port will give u the same speed of 45mph because i own one with that engine. But that mugen is way better then any ofna ride so gl have fun with it. Iwould have gotten a kyosho personally but that mbx5 is second on my list of buggies.