UNI FILTER NU-4148ST Air 804451041489

( Brand: Uni Filter ), ( Manufacturer Part Number: NU-4148ST ), ( UPC: 804451041489 ), ( Material: Foam ), ( Type: Air Filter )

Review UNI FILTER Multi stage Air For 17-20 And fits CRF450R CRF250R 2018–2021

The UNI Filter Nu-4148ST is a high-performance air filter designed specifically for the Honda CRF450R models from years 17 to 20 and the CRF250R models from years 18 to 21. This air filter is an upgrade from the stock filter, providing better engine protection and improved performance.

The Nu-4148ST is a multi-layer air filter, meaning it has multiple layers of filtration media. The first layer is a pre-oiled cotton gauze, which traps the larger particles of dust and debris, while the inner layers are made of synthetic pleats that filter out the smallest contaminants. This design offers a balance between air flow and filtration efficiency, ensuring reliable engine protection even in harsh riding conditions.

The filter's pleats are arranged in a consistent, even pattern, allowing maximum air flow and ensuring that the air filter lasts longer than the stock air filter. The Nu-4148ST is also designed to be easily cleaned and re-oiled, making it a cost-effective solution for prolonged use.

This UNI Filter features a unique, universal design that allows it to fit various motorcycle models, not just the Honda CRF450R and CRF250R mentioned. However, it's important to note that while the filtration media components are the same, the exact filter shape and mounting points may vary from other motorcycle makes and models. In such cases, additional adapters or modifications may be required for installation.

In summary, the UNI Filter Nu-4148ST is a high-performance, multi-layer air filter designed to offer superior engine protection and increased performance for Honda CRF450R (17-20) and CRF250R (18-21) motorcycle models. Its consistent pleat design promotes excellent air flow and extends filter life, while the pre-oiled cotton gauze and synthetic inner layers provide efficient filtration. Although this filter has a universal design, it may require additional adapters or modifications for installation on select motorcycle models.

Pros and Cons of Buying a Uni Filter Nu-4148ST for CRF450R (17-20) and CRF250R (18-21)

The Uni Filter Nu-4148ST is a popular aftermarket air filter option for Honda CRF450R (17-20) and CRF250R (18-21) motorcycles. This filter is known for its high filtration efficiency and long service life. In this article, we will discuss the benefits and drawbacks of using Uni Filter Nu-4148ST for your CRF450R or CRF250R.

1. Enhanced Engine Performance: The Nu-4148ST air filter provides more uniform filtration compared to stock filters, which allows more air to flow to the engine. This can lead to improved engine performance, including increased horsepower and torque.

2. Longer Filter Life: Uni Filter's pleated design and use of high-quality filter media provide longer filter life. This means less frequent filter replacement, saving time and money in the long run.

3. Better Filtration Efficiency: The Nu-4148ST air filter is designed to provide better filtration than stock filters. This can result in cleaner engine internals and improved engine protection.

1. Higher Cost: The Uni Filter Nu-4148ST is more expensive than stock air filters. While the longer filter life helps offset the cost, initial investment may be a consideration for some riders.

2. Installation: Installing the Nu-4148ST air filter may require more time and effort compared to stock filters. This is due to the filter's pleated design and need for proper seating to ensure maximum filtration.

3. potential risk of damaging the OEM intake boot during installation: Some users have reported that the installation of Uni Filter Nu-4148ST can potentially damage the OEM intake boot. Proper installation instructions and techniques should be followed to minimize this risk.

The Uni Filter Nu-4148ST is an excellent investment for riders seeking improved engine performance, better filtration, and extended filter life. However, the cost and installation considerations should be taken into account before making a purchase. To reap the benefits of this air filter, make sure to follow the proper installation instructions and maintain the filter as recommended.

If the advantages of the Uni Filter Nu-4148ST align with your riding goals and budget, it is highly recommended for CRF450R (17-20) and CRF250R (18-21) owners looking to upgrade their air filtration system. With proper installation and maintenance, this air filter can provide noticeable improvements to engine performance and protection.

Details:

Replacement Parts that have the same function and affect on emissions as they are replacing. Full exhaust systems installed on vehicles that did not originally contain a catalyst and whereby the design allows re installation original function of any other emissions control related components are also considered replacement parts. These parts do not require approval as long they are used on public highways. Modified Parts that alter the emissions control related performance from original part they are replacing, These may have catalysts in them but perform differently equipment or require alteration elimination of other components such as oxygen sensors.

It must be a competition vehicle and not used at any time on public highway. NU-4148ST: designed to fit in the factory air box exactly like original Filter. Check the shipping calculator for estimated costs. EO number and will arrive with appropriate labels to indicate the approved status.

Competition or Racing Vehicle Parts that are used exclusively in competition on race only vehicles. Dual layer of foam, can be serviced separately. Labeling a product as being for Racing Only or Closed Course Competition is not sufficient it to be included under this classification. Some items are made to order and can have longer lead times; check the shipping details for an estimate.

Motorcycle 17-20 Honda CRF450R 449 The best selling replacement air Filter for competition motorcycles and ATV. This means that if a vehicle was not originally equipped with catalyst and all other emissions related controls were connected such as oxygen sensors are reconnected, then the part is considered Replacement Part. Motorcycle 18-20 Honda CRF250R 249 1.

If the vehicle has a catalyst and installation of part does not remove catalyst, all other emissions related controls are reconnected, then this is considered replacement. Ask a question at the bottom of. Unique two stage design allows for easy and complete cleaning. Thin Ultra Seal base is virtually impossible to tear and has a built-in Grease Groove.

Slip on mufflers in applications whereby the catalyst is not contained original muffler an example of a replacement part.

part #: nu4148st prices

• $28.07-$33.56

specifications scoofilters:

• for models: Crf450r, Crf250r
• for years: 2018-2021
• brand: Uni Filter
• mpn: Nu-4148st
• upc: 804451041489
• material: Foam
• type: Air Filter

offer scooFilters:

• quantity: 1
• sold: 0
• availability: In Stock
• started: January 2, 2025
• options: Ship-to-home

general scooFilters:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Air Filters
• condition: New

seller scooFilters:

• rating: 99.3%
• # reviews: 102700
• city: Lebec, California

payments scooFilters:

• other
• wallet: Apple-pay
• credit card: Discover

returns scooFilters:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

shipping scooFilters:

• type: Fixed
• service: Standard
• class: Standard
• transit: 4-7 Days
• cost: $0.00

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