HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
biggziff

2005 WR450 exhaust suggestions

10 posts in this topic

I have a cored out stock exhaust for my WR450 and a FMF Powerbomb 4 Titanium. The FMF is L O U D so I bought the quiet core insert...ya right...quiet...that's funny....still freaking loud. The cored out stocker is pretty good.....not too noisy, but I'm thinking there must be a quieter high performance can out there. What do you guys recommend? I'll probably just sell the Powerbomb 4 and the quiet core.

thanks

Share this post


Link to post
Share on other sites

Thanks. Got any links to video of these? I don't really see any showing how quiet they are. We've had a few places closed down here recently due to loud 4 strokes so I want to be sure I have a decent, quiet exhaust.

Share this post


Link to post
Share on other sites

I got an fmf factory 4 with the 96 db insert. Its false advertising to say the least! It cannot get below a 98.5.

I find that I can ride the stock pipe with the pmb insert just as fast (or slow) as with the fmf pipe. Its very quiet and the bike is still plenty fast and powerful.

The FMF pipe is nice, but the stock with the insert will only require just a little bit more twist of the throttle.

Share this post


Link to post
Share on other sites

I used the stock pipe from my '05 YZ450. The midpipe has a bigger diameter over the stock WR, and while it's a bit louder than the WR it's not obnoxious. Definitely gets some performance improvement!! Wheelies at will.

Share this post


Link to post
Share on other sites
I used the stock pipe from my '05 YZ450. The midpipe has a bigger diameter over the stock WR, and while it's a bit louder than the WR it's not obnoxious. Definitely gets some performance improvement!! Wheelies at will.

Hmmm..interesting. Maybe I'll try to find one of these on fleabay

Share this post


Link to post
Share on other sites
Reading around here the FMF Q has had a good following!

Ya, but I'd like to hear one. I've read that some think it isn't quiet at all!

Share this post


Link to post
Share on other sites

I have a powerbomb and a Q4 on my 04 450. This setup is definitely quieter than the uncorked...otherwise unmodified...factory can. It took out the harsh 4-stroke "cracking" sound. And it sure feels like this set-up improved the low-end grunt. With this set-up I went up one size on the main. Most of my riding is in the 2,200-2,800' elevation area.

A couple of weekends ago we swapped bikes while ripping around in the woods. My buddy with a brand new 300KTM crawled off of my bike and said "that things has guts".

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0