K&N 33-5040 High-Flow Replacement Air Filter for 2016-2023 Mazda MX-5 Miata

Vehicle Fitment

• 2016-2023 Mazda MX-5 Miata (Sport, Club, Grand Touring, RWD, 2.0L I4)
• 2017-2020 Fiat 124 Spider (Classica, Lusso, Abarth, Urbana, RWD, 1.4L Turbo I4)

Fitment Notes

• Direct replacement panel air filter designed for the factory air box.
• Fits only vehicles equipped with the original factory intake system.
• Not intended for vehicles with aftermarket intake systems requiring a different filter.

Features

• High-flow oiled cotton gauze media improves airflow over disposable paper filters.
• Washable and reusable for the life of the vehicle.
• Engineered to help improve horsepower and throttle response.
• Four layers of premium cotton filtration media for excellent contaminant capture.
• Direct drop-in replacement requiring no modifications.
• Pre-oiled and ready for installation.
• Up to 99% overall filtration efficiency under ISO testing.
• Backed by K&N No-Hassle Lifetime Limited Warranty.

Specifications

• Part Number: 33-5040
• Filter Style: Panel Air Filter
• Filter Media: Oiled Cotton Gauze
• Reusable: Yes
• Outside Length: 13.563 in (344 mm)
• Outside Width: 5.625 in (143 mm)
• Height: 1.125 in (29 mm)
• Filter Efficiency: Up to 99%
• Recommended Cleaning Interval: Up to 75,000 miles under normal highway driving conditions

Included Components

• 1x K&N 33-5040 High-Flow Replacement Air Filter

Product Description

The K&N 33-5040 High-Flow Replacement Air Filter is designed as a direct-fit upgrade for select 2016-2023 Mazda MX-5 Miata and 2017-2020 Fiat 124 Spider models. Its multiple layers of oiled cotton gauze provide increased airflow while maintaining excellent filtration, helping support improved engine performance and throttle response without requiring modifications.

Unlike disposable paper filters, the 33-5040 is washable and reusable, making it a cost-effective long-term upgrade. It installs directly into the factory air box, comes pre-oiled for immediate installation, and is engineered to deliver reliable performance and long service life while reducing replacement filter waste.