That particular big block he mentioned - is suppoed to be the first direct dop in for the Maxx from what I understand. been waiting to find out.

My wife has a TMaxx 2.5 and I been debating on selling it or putting a bigger motor in it. I spent a lot putting hop-ups on it. I almost don't want to get rid of it now. If we keep it I am waiting to find out about this 21 though. If it ends up being a direct fit, my wife wants it for her Maxx.

If you don't wait for it, then go with the Fantom 18.