I'm looking into buying a used exhaust with a spark arrestor already on it. I've got a 2001 Yamaha YZ 426. The bike its off of is a 1999 Yamaha YZ 400F. I was hoping somebody out there would know if this would work on my bike. I'm looking for a spark arrestor and I don't want to haft to spend $400 dollars for something I gonna use on just one trip then take it off when I get back.