[eovnu87435ds]

yeah, the mamba monster(mmm) is not seen as an "upgrade" to the mamba max(mm). they are just seperate products desighed for different size RC cars and trucks, and therefore you cant just hand in one product and expect them to hand you a different product in return... the upgrade thing you mightve read about only concerns the monster, which the v1 and v2 versions do bad things. Castle has realized this and doesnt want to be responsible for blowing up thousands of rc cars, so they will take in only the mmm v1 and the mmm v2 and will give you a mmm v3 in return.

as bummed as you might be, just because your mamba says 1/10th scale doesnt mean you cant run it in a 1/8th scale. many people do. i did until just recently in my 8th scale hyper 7 buggy and it was faster than it's nitro counterpart by far. what are you putting it in? check my signature for more info on using the mamba max in your rc.