GP2 Slip-On Exhaust

• Product Details

  Standard slip-on system with GP2 muffler.

  • This slip-on mounts to the stock catalytic converter to improve the looks of your R1.
  • These systems utilize the stock header assembly.
  • Slip-ons replace the stock restricted muffler resulting in better sound and an increase in power.
  • M4 silencers look as good as they perform.
  • Note: M4 recommends re-flashing your stock ECU to unleash the full potential of all M4 products.

  Note:

  All M4 systems are designed and intended for closed-course competition use ONLY.

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• Customer Reviews

• Q&A

• Fitment

• # Part Numbers

  Product Variant	Manufacturer Part #
  Black Ceramic M4 GP2 Slip-On Exhaust	YA9922-GP

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