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An expansion chamber exhaust significantly improves engine power output by enhancing its volumetric efficiency resulting in more power and better performance across a wider RPM range
NIU is a global leader in smart urban electric scooters
Piston rings included
Specifications: Includes 4 seals as shown below
A direct bolt-on replacement that matches factory specifications exactly — no modifications required
COVER - WHITE, REAR CENTRAL COVER (BUD) 50cc pipe An expansion chamber exhaust significantlyYou can also purchase this part through your local Genuine dealer.
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