quietest muffler


22 replies to this topic
  • KennyMc

Posted October 25, 2007 - 07:36 AM

#21

The quiet insert is simply a metal sleeve the fits in the end, the spark arrestor is always in.


So the quiet insert has a built in spark arrestor?

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  • rdefonce

Posted October 25, 2007 - 09:02 AM

#22

I took the same system off my 02 WR for the same reason and put the stock unit back on. Without an insert it's a little loud but not too bad. The stock insert was too restrictive so I bought this one and it's right were I like it.
http://www.promotobi.../products_id/54


I also have a '99 YZ400 (with stock exhaust system.) I ride in Colorado with it, and want quieter setup but that will still work on MX track. Would the promotobillet thing be a good choice for that?

  • byggd

Posted October 25, 2007 - 10:21 AM

#23

I also have a '99 YZ400 (with stock exhaust system.) I ride in Colorado with it, and want quieter setup but that will still work on MX track. Would the promotobillet thing be a good choice for that?

Every bike is different but IMO yes. On my bike it brought it down to 92db.




 
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