i am pretty sure the auto Bseries tranny won't fit in that engine bay... you could do whatever you wanted to the B18 once you had it in there... that's not the point right now though... the automatic tranny, i'm sure won't fit... i think it's too big... if you were able to fit it in there, you would want to get a new torque converter to hand the extra torque and power you'd be putting down with the added power addative... i.e. supercharger/turbocharger... changing your car from auto to manual would be pointless... too much money for nothing... you'd be better off buying a new car with a maunal tranny already... if you're wanting power... D16s work great with turbochargers... they make plenty of power and not a whole lot of work needs to be done to put them on... good luckoh, and by the way... doing a mini me swap does NOT need new motor mounts... i had that on my last civic that i did myself...