ITEM NAME:Aluminum Racing Intake Manifold For GY6 150cc Chinese Scooter Performance BX Features: Aluminum Intake Manifold for the GY6 125/150cc Engines. GY6 modified bucket carburetor, special intake pipes increase pipe / branch pipe, large diameter carburetor. Aluminum alloy material, fine workmanship. Specifications: Metal Inner Diameter: 27mm/1.06" Rubber Inner Diameter: 32mm/1.26" Mounting Holes: 45mm/1.77" (center to center) Package included: 1x Intake Manifold Note: 1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different..Aluminum Intake Manifold for the GY6 125/150cc Engines. 1x Intake Manifold.