ITEM NAME:50mm Aluminum Alloy Velocity Stack for PWK 21/24/26/28/30mm Carb (Blue) Product Description Description: 50mm CNC Aluminum Alloy Velocity Stack for PWK PE VM 21/24/26/28/30mm Carb Intake Trumpet Specification: Material: CNC aluminum alloy Color: Black/Silver/Gold/Red/Blue (Optional) Size: 50mm/1.97" Installation: simple direct installation Applicable model: for PWK PE VM carb Note: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Included: 1 X Velocity Stack.Applicable model: for PWK PE VM carb. Included: 1 X Velocity Stack. Material: CNC aluminum alloy. 12 months Warranty. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.