About this item 30mm Intake Manifold Insultor For Chinese 200cc 250cc Vertical Engine Inside Diameter: 30mm ; Bolt hole spacing: 48mm(Carburetor Side); Angled/ Tilted neck Aluminum 30mm Carby Carburetor Intake Bent Manifold. Fits for 200cc 250cc Air / Water Cooled Engine Vehicles. The intake pipe mouth is oblique.This inlet pipe is curving. Package Includes: 1 x 30mm Intake Manifold