Originally Posted by Xpress..

Hi guys,

I have an XTM Mammoth that just needs a new engine to get it up and running, but not knowing much about the XTM cars I was wondering if anybody here has run something different than the 24.7 engine they came with (or the .28 upgrade they recommended)? Is there anything that is a drop in upgrade?

I'd usually just try to buy another 24.7 engine to drop in but it looks like they are scarce.

Thanks!