What is ID of WR450 exhaust outlet?

1 reply to this topic
  • Scott_321

Posted November 06, 2003 - 03:14 PM


I was hoping someone could tell me what the inside diameter of their WR450 exhaust pipe outlet is. I want to be able to use a Pro Moto Billet silent insert on a yz450 stock pipe and PMB tells me it won't work. Well the young girl who answered and sounded like she wasn't exactly an expert on the subject told me it wouldn't work. So if it won't work on the stock yz pipe I thought I might be able to make my own nozzle from SS pipe and tig it to my stock end cap. I want to avoid buying the PMB endcap. $119 is kinda steep and I don't really need the spark arrestor.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • crushedreams

Posted November 06, 2003 - 03:54 PM


The YZ and WR outlets are different sizes. I measured them once but dont remember the exact sizes. The WR is bigger by quite a bit, 1/2 inch or so. I am positive it wont fit. Hope that helps.


Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.