Polini 45mm Racing Scooter Air Filter with Intake Cover

Polini 45mm Racing Air Filter for Performance Scooters

The Polini 45mm Racing Air Filter is built for performance scooters. Its open airflow path helps throttle response and overall engine output. It is one of the scooter air filters that can noticeably sharpen your ride. Made in Italy, it replaces restrictive factory airboxes so the engine can work closer to its rated horsepower.

Design Overview

The filter uses a high-flow foam element that filters well while keeping air resistance low. A removable splash cover shields the filter from road dirt and moisture, so it works for both track use and everyday riding. The 45mm universal flange suits a range of performance carburetors.

Cleaning and Upkeep

This Polini filter can be washed and reused, so it lasts through regular cleaning. Clean the foam element periodically to keep airflow steady. After fitting it, adjust the main jet in your carburetor to suit the extra airflow, since too little fuel can cause a lean running condition.

Specifications

• Internal Flange Connection Diameter: 45mm (~1.75 Inches)
• Flange Style: Straight neck with heavy-duty steel worm-gear clamp
• Filter Material: Open-cell polyurethane foam
• Shroud Material: Impact-resistant high-gloss black plastic
• OEM Part Number: 203.0097
• Country of Origin: Italy
• Fits: Polini 45mm performance carburetor intake bells: Polini CP, Dell'Orto PHBG, OKO/PWK

Fitment

Fits:

• Polini CP Series carburetors (17.5mm, 19mm, 21mm, 23mm variants) on Minarelli / Jog 50, Buddy and Vespa 2T tuning builds
• Dell'Orto PHBG carburetors (45mm threaded or smooth bells) on high-RPM European 2-stroke performance configurations
• OKO / PWK small-body carburetors (21mm through 28mm) on upgraded GY6 50cc, 139QMB and 2-stroke stroker blocks
• GY6 large performance carburetors (select 30mm+ slide upgrade layouts) on big-bore GY6 125cc / 150cc scooter and buggy platforms

How to choose: Measure the outer diameter of your carburetor intake bell. It must be 45mm to clamp onto this filter.

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