thunder alley pipe for a yz 400f

2 replies to this topic
  • yamaha racing 230

Posted December 19, 2006 - 03:41 PM


does anybody have the thunder alley slip on muffler for a yz 400 or 426 or even 450 how was the power and was it to loud i want a good pipe but it cant be real loud under 100 decibles if possible. thanks

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  • Bigcr

Posted December 19, 2006 - 04:50 PM


TA pipes are VERY loud. They definately beef up the low-end power, but they are loud.

  • Wyatt

Posted December 20, 2006 - 05:28 AM


They are awesome pipes and you cant beat the price. I have been running them since '01 and the service is great also.

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