yz426 400ex exhaust

[partyboy300ex]

what kind of exhaust is everyone runing on there yz426 400ex hybrid i have a tc shorty and want to get somthing different what do you guys run and waht do i need to do to make them work
Thanks
Aaron

I ran white bros R4 shorty

[ss440ex]

Check out some of the exhaust thunder alley is making.

For both the yz and crf.....

He (Bob) can also adapt the head pipes to a 400ex siliencer,
just like him know what ya got!

He makes some kickin head pipes...top quality.

[RMI_Speed]

would you be interested in getting rid of your tc shorty? let me know thanks