Sign in to follow this  
Followers 0
GasAHolic

Anyone use a Performance WR Muffler Insert?

6 posts in this topic

I'm not sure what year model you have, but notice that its not available for the 05_WR.

I've been waiting on a ProMotoBillet insert ( recommended on http://www.thumperfaq.com ); yet to ship for the 05_WR.

http://www.promotobillet.com/shop/item.asp?itemid=66

Meanwhile, I've removed the restrictive (black) insert from the stock exhaust ; makes a big difference in performance when done with the other "free mods" shown on thumperfaq.com.

Initially, I removed the entire silencer, but the bike sounded horrible -- thus, I removed the insert from the silencer (as shown on thumperfaq); now it sounds much better, quieter and I did not notice any performance loss.

Still; for $39 -- I'll try the promotobillet insert when it ships.

Elton

Share this post


Link to post
Share on other sites

I run this baffle. It is much better than stock and comparable to the ProMotoBillet one. I got much better results (without jetting change) using this GYTR baffle. It is a cheap fix to a loud problem

Fryboy

Share this post


Link to post
Share on other sites
I've heard that the stock exhaust is good when uncorked (rather than FMF / WB replacement - true or not???), and came across this insert which claims to provide a substantial power increase.... any thoughts guys? :cry:
I use the GYTR baffle for a wr426, and I feeel it made a big power increase. I was actually looking for LESS power, but had to replace the stock unit (broke and lost). Good bang-for-the-buck, IMHO. K

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