K&N 33-5145 High-Flow Washable Engine Air Filter

The 33-5145 is a 4-layer oiled cotton gauze panel filter that drops into the factory air box of the 2.0L Atkinson-cycle hybrid engine, replacing Honda OE part 17220-6MA-J01. K&N states a 75,000-mile cleaning interval under normal highway driving; this engine only launched for model year 2023, so no owner has yet reached that first interval at typical mileage, and single-filter multi-cycle cleaning data does not exist yet. K&N publishes an ISO 5011 filtration-testing methodology across its lineup and cites high-90s percent efficiency figures for sibling 33-series filters, but no SKU-specific published percentage was found for the 33-5145. The manufacturer markets increased horsepower and acceleration; no independent dyno test isolating this drop-in filter was found to confirm or contradict that claim.

Right pick for an owner of this specific hybrid engine who wants to stop buying disposable filters over a long ownership horizon and is comfortable with an occasional cleaning and re-oiling step. The Honda OEM cross-reference and two independent OE dealer catalog confirmations make fitment risk low for this engine specifically. Skip if your vehicle uses a 1.5L turbo engine sharing the same general platform: it uses a different airbox and the Honda OEM part 17220-64A-A00, not the 17220-6MA-J01 this filter replaces, so the 33-5145 does not fit it. Also skip if you would rather wait for independent dyno and multi-cycle cleaning data to accumulate on this newer engine before committing to a performance filter.

Passive replacement component; no chemical exposure pathway during installation or removal, and no SDS applies. K&N's own FAQ states that Proposition 65 warnings appear on its air filter product boxes brand-wide, reflected here as a small accessory health adjustment rather than a use-phase exposure hazard. The environment score of 6 reflects the washable reusable lifecycle credited for its structural waste reduction and recyclability advantage over a disposable filter, held back from the top of the reusable range because this hybrid platform is too new for community-confirmed multi-cycle mileage data. Filter cleaning and re-oiling with a K&N Recharger kit involves a solvent cleaner and petroleum-based oil; review that product's safety data separately for PPE guidance.

An engine air filter only does its job if it actually fits your engine. Before you buy, find the engine air filter for your vehicle in the CarCareTruth air-filter finder, pick your year, make, and model, and we'll show the filters that fit it, ranked by our independent score and cross-checked against multiple catalog fitment sources.