32mm Performance Intake Manifold for Scooters & Mopeds

32mm Performance Intake Manifold for GY6 125cc/150cc Engines

This 32mm intake manifold is built for GY6 125cc and 150cc engines used in a range of scooters and mopeds. Its flow path is wider than stock 24-26mm units, which helps airflow and makes room for larger carburetors. It is part of the scooter fuel system range and suits custom builds and performance upgrades well.

Build and Material Makeup

The manifold uses a cast aluminum body, a brass/gold collar, and a green rubber boot. Together these parts hold a tight fit and work reliably in different conditions. A metal gasket for the engine side is included to improve sealing, so it can stand in for a worn or damaged part.

Size and Fit Details

The flow diameter is 32mm, aimed at better performance on compatible engines. The carburetor-side inner diameter is 37mm and the engine-side inner diameter is 27.5mm. Bolt holes are spaced 45.5mm center to center, which keeps installation simple on the listed models.

Specification Sheet

• Flow Diameter: 32mm
• Inner Diameter — Carb Side: 37mm
• Inner Diameter — Engine Side: 27.5mm
• Bolt Hole Spacing: 45.5mm
• Vacuum Ports: 2
• Material: Cast aluminum body, brass/gold collar, green rubber boot
• Includes: Manifold, metal engine-side gasket
• Dimensions (packaged): 8" L x 6" W x 3" H
• Fits: GY6 QMJ/QMI 152/157 4-stroke 125cc and 150cc engines, including Chinese-made scooters, ATVs and go-karts

Compatibility

Fits:

• GY6 QMJ/QMI 152/157 4-stroke 125cc engines
• GY6 QMJ/QMI 152/157 4-stroke 150cc engines
• Chinese-made scooters, ATVs and go-karts using these engine codes

How to choose: Look at your engine code. If it contains QMJ or QMI 152 or 157, this manifold will fit.

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