GYTR de-restriction kit (California)

2 replies to this topic
  • 4strokerf

Posted September 25, 2011 - 05:29 PM


I had the GYTR de-restriction kit installed by my Yamaha dealer onto my '04 WR450F. Can I take out that exhaust insert/baffle without doing any long/short term engine damage and no re-jetting? Thanks!

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  • tl1000rlt

Posted September 25, 2011 - 05:34 PM


You will prolly need to go up a couple sizes on your main jet.

  • William1

Posted September 26, 2011 - 03:05 AM


You will not damage the bike but it will be slower and pointlessly loud.


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