The Turmoil, as I understand it, is a very improved Mayhem!
My brother has one of the early Mayhem's and has replaced, with Turmoil parts, everything BUT the chassis.
He did $aid it would have been $marter to ju$t get a Turmoil!!!!
The first, best, parts to replace is the steering. It's a 100% improvment over the Mayhem steering, the Mayhem steering wasn't bad!!!!