GYTR de-restriction kit (California)

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!

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

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

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