The K&N 33-5006 is a reusable, pre-oiled panel filter for the 2.0L four-cylinder in the 2014 Honda Accord Hybrid. K&N Air Filters are pre-oiled and ready to drop into your factory air box, and the manufacturer builds it from multiple layers of premium cotton gauze rather than disposable paper. The manufacturer rates it at up to 99% efficiency, and its own test data reports 99.05% overall filtration efficiency. Its main advantage over a cheap paper replacement is that you clean and re-oil it at service intervals instead of buying a new filter each time. Owners on user forums are split on whether that yields a noticeable gain. Some report a noticeable throttle response improvement, while others find negligible hp/tq difference against a clean stock filter.
Fitment is the first thing to verify. The manufacturer confirms the filter for the 2014 Honda Accord Hybrid 2.0L L4 and states it is designed without any need for modifications. It is also listed as a cross-reference for Honda 172205K0A00 (17220-5K0-A00). Listings for this number show different model-year ranges, so confirm yours before ordering. For a DIY swap, the filter is a drop-in replacement for the factory element, which keeps the job to a quick airbox service. Search terms that match this product include K&N 33-5006 Accord Hybrid air filter, 2014 Accord Hybrid 2.0L drop-in filter, washable Accord Hybrid air filter, and reusable cotton gauze replacement.
The manufacturer's product information confirms fitment for the 2014 and 2015 Honda Accord Hybrid 2.0L L4. The manufacturer's listings for this part number show wider model-year ranges on different pages, so check K&N's application lookup with your VIN before ordering.
According to the manufacturer, the filter is designed to drop into the factory airbox with no modifications required.
The manufacturer specifies a re-oiling amount of 0.46 oz (14 ml). Owners on user forums warn that over-oiling is easy to do and can contaminate the MAF sensor, so apply the oil sparingly and let the filter dry for several hours before reinstalling.
This is a drop-in swap that requires no permanent modifications. Remove the factory airbox lid, take out the old element, wipe the sealing surfaces clean, and seat the K&N with the lid fastened securely. The manufacturer's install sheets for comparable drop-in K&N filters stress cleaning the sealing surfaces and fully seating the lid, since an improper seal can let unfiltered air bypass the element. Owners on user forums recommend cleaning and re-oiling the filter carefully before reinstalling, and letting it dry fully before it goes back into the box.