Aftermarket Assassins P90X Secondary Butter Shift Washers | 2022-Up Pro-R 4 Cylinder

• 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