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  • Fits only 2022-Up Pro-R 4 Cylinder Models
  • These will NOT fit the regular Turbo & Ranger P90X models
  • 2 washers stacked in the helix allow for less spring bind and smoother shifting
  • Less harmonic noise from the spring
  • Increases spring rate by 10-15lbs peak on average, this can help eliminate slipping if more spring tension was needed
  • See instructions HERE
  • Part number: 108-1067