ITEM NAME:Metal Intake Manifold Pipe for 150cc-160cc Engine Dirt Bike Description: Fitment: For 150cc,155cc,160cc YX GPX Zongshen Engine Pit Dirt Bike. Dependable performance with competitive price. Durable in use and Precise machining size. Good coming air intake efficiency. Smooth finish and easy install. Specification: 47.5mm/1.87inch Mounting Bolt Pattern for carburetor ( center hole to center hole ) 45mm/1.77inch Mounting Bolt Pattern for Engine ( center hole to center hole ) Inner Diameter :26mm/0.75inch;28mm/1.10inch Mounting Hole Diameter:6mm/0.24inch Material: Metal Package Includes: 1 Piece Intake Manifold Pipe Note: Please allow 0.5-1 inch difference due to manual measurement. (1 inch=2.54cm) The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. SKU: DMO0012093067019943.1 Piece Intake Manifold Pipe. Good coming air intake efficiency. Smooth finish and easy install. Durable in use and Precise machining size.