K&N High-Flow Air Filter | Porsche 944 1985-1991 L4-2.5L | Sold Each
K&N High-Flow Air Filter | Porsche 944 1985-1991 L4-2.5L | Sold Each
K&N 33-2081 High-Flow Replacement Air Filter is a drop-in element for the 944. It fits the original airbox with no modification and replaces the disposable paper filter permanently.
Check your part number. K&N list more than one filter across the 944 range depending on year and engine. This one covers the applications below — confirm against your car before ordering.
Oiled cotton, the original high-flow media. K&N layers oiled cotton gauze between epoxy-coated aluminium mesh, rated to flow up to 50% more air than a paper filter and tested in an ISO 5011 laboratory for filtration efficiency. Supplied pre-oiled; washed and re-oiled with a K&N Recharger kit, with up to 50,000 miles between cleanings under normal driving.
Key Benefits:
- Designed to flow up to 50% more air than a disposable paper filter
- Layered, oiled cotton gauze media between epoxy-coated aluminium mesh
- ISO 5011 laboratory tested for filtration efficiency
- Washable and reusable — up to 50,000 miles between cleanings
- Drop-in fit to the original airbox, no modification required
- Backed by K&N's 10-Year / Million Mile Limited Warranty
Compatible Vehicles:
- Porsche 944 L4-2.5L F/I — 1985–1991
Note: K&N lists 33-2081 without a multi-filter annotation — it is supplied as a single filter. K&N's model listings show this part number against certain 2.7L 944s as well as the 2.5L; the entry above is their canonical application. Clean and re-oil with a K&N Recharger kit and apply oil sparingly.
Installation Instructions:
Buy it once, wash it for the next thirty years.
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