Anyone use a Performance WR Muffler Insert?


5 replies to this topic
  • GasAHolic

Posted January 29, 2005 - 08:50 AM

#1

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:

Here's a product link: http://yamaha.dgy.co...3335_All_1.aspx

  • elton

Posted January 29, 2005 - 09:15 AM

#2

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.promotobi...m.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

  • Fryboy

Posted January 29, 2005 - 09:34 AM

#3

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

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  • Kirk_Ingram

Posted January 29, 2005 - 04:17 PM

#4

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

  • don319

Posted January 29, 2005 - 06:16 PM

#5

GYTR insert here as well. Cheap, quiet, powerful.

  • RichBaker

Posted January 30, 2005 - 10:53 AM

#6

Quiet Products insert is better.....better flow, same loudness.
quietiscool.com




 
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