This high quality PTFE coated intake manifold for 50cc, 125cc, and 150cc GY6 scooter engines is from NCY
Monster Scooter Parts gives you the choice between the EGR and the non-EGR style manifold
30 Day Warranty Description

This high quality PTFE coated intake manifold for 50cc, 125cc, and 150cc GY6 scooter engines is from NCY.
Monster Scooter Parts gives you the choice between the EGR and the non-EGR style manifold.
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. Long lasting parts, and more power.
EGR FEATURES: Cast aluminum intake manifold with PTFE coating. One vacuum fitting and one EGR fitting O-Ring base.
Non-EGR FEATURES: Cast aluminum intake manifold with PTFE coating. 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.
Let Monster Scooter Parts be your source for NCY scooter parts and accessories. Specifications

EGR
Engine-side bore: 26.5 mm
Carb-side bore: 30 mm
Runner length: 100 mm

Non-EGR
Engine-side Bore: 27mm
Carb-side Bore: 28.5mm
Runner Length: 109mm