Slip on for a 426?

6 replies to this topic
  • Skithis

Posted May 06, 2008 - 12:17 PM


Who makes a good slip on aftermarket performance pipe for the yz426? I get Parts unlimited at cost so I would prefer if it was a parts unlimited brand. I looked at the GTYR pipe but its a lil pricy.

  • Skithis

Posted May 06, 2008 - 02:48 PM


Looks like I can get a pro moto billet end cap for around 110 and a FMF T-4 for just over 200. Any of these good?

  • 426pilot

Posted May 06, 2008 - 03:39 PM


Are you riding closed course or public lands; and do you have noise restrictions in Michigan? The T-4 is a great unit, but here in CA the rangers will swarm if you try riding it off road.

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  • Hempstead

Posted May 06, 2008 - 03:44 PM


Drd? always have had good results witht them

  • dejavudarrell

Posted May 06, 2008 - 04:08 PM


I bought the GTYR header pipe for 100.00, And pro moto billet end cap with great results mid to high you will have change your main jet to a 168.

  • Skithis

Posted May 06, 2008 - 05:09 PM


Well I can get yamaha at cost also. sooo...Im thinking pro moto billet end cap, GTYR header pipe, and 168 jet. I can get that for the same price of just an fmf pipe.

  • dejavudarrell

Posted May 06, 2008 - 08:34 PM

I bought my pro moto end cap from this guy on ebay,He's out of them now.
And I bought Yamaha GYTR™ Stainless Steel Header Pipe at

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