Description: Aftermarket 100% brand new upgrade Carburetor Intake Manifold Boot. Offer a smooth bore and larger inlet diameter,make a noticeable power increase. Perfect fit for your motorcycle carburetor. Made of premium aluminium and rubber materials with exquisite craft for strong strength,oil resistant and long durability. Good working condition, easy to install and replace. Fitment: for GY6 150cc Chinese Scooter Go Kart. Specification: Material: Aluminium + Rubber Engine Connector Diameter: 27 mm / 1.06 inch Carb Connector Diameter : 33 mm / 1.3 inch Package Includes: 1 Piece Carburetor Intake Manifold Boot Note: 1.Easy to install, but professional installation is highly recommended! 2.Please allow slightly difference due to manual measurement