This high quality accessory is the 28 mm intake manifold for 50cc, 125cc, and 150cc GY6 Engines from NCY
NCY intake manifolds offer a smooth bore and larger inlet diameter over stock
30 Day Warranty Description

This high quality accessory is the 28 mm intake manifold for 50cc, 125cc, and 150cc GY6 Engines from NCY.
NCY intake manifolds offer a smooth bore and larger inlet diameter over stock. Combined, these two assets allow more air and more fuel into your cylinder, giving you more power. Intake manifold upgrades are a must for larger carburetors.
It doesn’t make sense to install a large carburetor only to have its flow restricted by the manifold. Larger manifolds can make a noticeable power increase on their own, and provide a choice option over the standard rubber manifolds. NCY intake manifolds offer longer lasting parts and more power.
This polished aluminum manifold features one vacuum line fitting O-Ring base.
Note: When installing a larger carburetor with or without an intake manifold, please check the engine side diameter of the carburetor for proper fitment into the manifold.
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1300-1004 Specifications

Engine-side bore: 27 mm
Carb-side bore: 28.5 mm
Runner length: 88 mm