Just a heads up everyone, I too was planning an aftermarket seat/5-point harness & just attach the harness around the bar behind the seat. Can't recall the site, but the words "proper harness mounting" caught my eye. The guy who rolled his ACE had mounted his harness on both his ACE & RZR to the rear bar which is fine for very slow speed roll overs. He had a high speed roll over & severely busted up both collarbones & dis-located his neck but was not paralyzed. After reading so many of the scary crash stories, installing a harness is more than simply installing to whichever bar is closest/strongest. The bar on the ACE is far too high & will most likely buckle the seat top & possibly cause a broken neck. Something to think about for sure...I've now decided on a harness mount bar for my ACE. Diagram is to prevent other injuries due to improper harness mounting. Diagram applies to ALL 4/5/6-point racing harness regardless of type of machine mounted in.