Aftermarket Assassins Pro R 4 Cylinder P90X Secondary Butter Shift Washers
- Fits only 2022 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
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