This plastic intake manifold fits «X-Style» and «GS Moon Style» 2-Stroke 43/47/49cc pocketbikes/quads/scooters/other. 13mm Venturi Opening with 2 Mounting holes to block and 2 mounting holes for carburetor. Note position of the Vacuum hole at top. Measures: 1.5" (H) x 2 1/8" (W).