Muy Thai also untilizes the clinch a lot as well where kickboxing does not. I personally think that Muy Thai is more devestating than kickboxing because of the knees from the clinch.
Just make sure that you maintain your cardio and stretch like others have said.
Urijah Faber - Dustin Poirier - Demian Maia - Frankie Edgar - Vitor Belfort - Georges St. Pierre - Lyoto Machida - Miesha Tate
Thanks M.C for the sig!