pro circuit

4 replies to this topic
  • YZ450F4

Posted March 28, 2012 - 11:55 AM


i have a 2003 Yz450f with a pro circuit t-4 full system on it. I love the exhaust but i want to get a cone style end cap for it instead of the ugly one it has on it now. Does anyone know if its possible to get one for it? Or does anyone have one on their bike they could post a picture of? also is it quieter than the one it has now? I dont really caer if its louder or quieter as long as it sounds good. any help or pictures would be appreciated. Thanks

  • rottenrooster4

Posted March 28, 2012 - 09:32 PM

#2 They have everything you could ever want, plus add some exhaust decals to freshen up the look!

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  • YZ450F4

Posted March 31, 2012 - 06:08 AM



  • YZ450F4

Posted March 31, 2012 - 12:57 PM


Also is the pro circuit t4 made to run with just the end cap or with both the end cap and insert? Is the insert just a quiet core?

  • rottenrooster4

Posted April 01, 2012 - 02:51 PM


Yeah, that's essentially all that an insert is, to minimize decibels for people who don't like loud thumpers. You can run a t-4 with or without one, I personally don't, but I did buy a spark arrestor for it.

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