Uni UP-4152AST Dual Layer Pod Filter - 38mm Angled Clamp for Scooters & Mopeds

Uni UP-4152AST Dual Layer Pod Filter for Honda Grom

The Uni UP-4152AST is an angled, clamp-on dual layer pod air filter built for scooters and mopeds, including the Honda Grom. It helps improve airflow, which can support better engine output. If you want to move past a stock setup, it is one of the scooter air filters available for a more efficient, racing-style option. Its dependable build and fitment make it a common pick for riders who want to fine-tune their machine.

Filter Design and Construction

The filter uses a urethane flange that provides a snug, flexible seal across different setups. Its inner diameter is 1.5 inches (38mm) and its outer diameter is 3.5 inches. The filter portion measures 4 inches long, and the full assembly measures 4.6 inches overall. These measurements are meant to sit neatly in the space available on your vehicle while still delivering the filtration your engine needs.

When to Replace Your Filter

Keeping up with maintenance helps your scooter perform as it should. A noticeable drop in power or slower throttle response can be a sign that your air filter needs a closer look or replacement. Swapping in the Uni UP-4152AST can support efficient engine operation and steady performance on the road. A clean, working air filter goes a long way toward getting the most out of your scooter.

Specifications

• Material: Urethane
• Size: 1.5 inches (38mm) inner diameter, 3.5 inches outer diameter
• Length: 4 inches (filter), 4.6 inches (overall)
• OEM Part Number: UP-4152AST
• Made in: U.S.A.
• Fits: Uni 38mm angled clamp-on pod filter for scooters and mopeds with a 1.5-inch (38mm) intake

Fitment

Fits:

• Honda Grom (stock filter upgrade, paired with the 1/2" Uni Push-In Breather)

How to choose: Check the inner diameter of your intake boot. This filter requires a 1.5-inch (38mm) inlet.

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