I installed a Kirkey aluminum race seat on the passenger side this weekend in order to save a few pounds from the stock seat. What a piece of CRAP! I can't imagine sitting in one of those for any length of time. I had always thought that the MOMO Start seat I'm using for the driver's seat was a cheap imitation of a real seat, but it is light years better than the Kirkey! Not to mention that the Start seat weighed in at 12 lbs. with full upholstery, while the Kirkey weighs 12 lbs. without it's crappy slip-on seat cover. I guess I should be happy that I don't have to sit in the passenger seat, huh.