Is the YZ 400 & 426 silencer the same and...........

Is it the same and will it bolt to my White Bros tapered header.

I want to quite down the bike, without removing discs. I've found removing discs kills the power :)



97 KDX220, 86 TTR225, 99 WR400f, WR timing, throttle stop trimmed, air box lid removed, White Bros head pipe, silencer and air filter. De-octopussed. Works frame guards and Thumper Rad Guards, Scotts steering damper. Odometer and headlight removed. Moose hand and mud guards. YZ stock tank, IMS seat and number plate. Renthal Jimmy Button "highs" and Renthal Soft half waffle grips. AMA, SETRA, Happy Ramblers MXC.


I have a '99 YZ silencer on my WB tapered header. They do fit, but the joint gasket is not used, and I've found I need to wrap the joint with steel tape to seal properly.

No problems in 10 months.

I think the 426 can has a slightly larger volume, but hear they fit too.

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