Description
33-2231 K&N Replacement Air Filter
Product Description
K&N's replacement air filter 33-2231 is designed to increase horsepower and acceleration while providing excellent filtration. This filter 33-2231 is washable and reusable and is custom designed to fit into your existing factory air box. Its drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. K&N's replacement air filter 33-2231 covered by famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.
Installation:
K&N's replacement air filter 33-2231 is custom designed to fit into your specific vehicle’s factory air box. Instead of swapping out your old paper air filters over-and-over again, you simply drop in a K&N's replacement air filter 33-2231 once and you’ve boosted the lifetime performance of your vehicle in as little as 5 minutes! for more installation details.
Product Features
- Boosts horsepower and rate of acceleration.
- Washable and ready to use again.
- Stands for 50,000 miles before cleaning is required depending on driving conditions.
- High air flow with exceptional filtration.
- Works with OEM vehicle parts and electronics.
- Million Mile Limited Warranty®.
Product Specifications
| Air Filter Shape | Panel |
| Filter Material | Cotton Gauze |
| Filter Re-Oiling Amount | 1 oz (30 ml) |
| Height | 1.063 in (27 mm) |
| Outside Length | 9.375 in (238 mm) |
| Outside Width | 6.875 in (175 mm) |
| Package Contents | 1 Air Filter |
| Package Quantity | 1 |
| Product Box Height | 9.69 in (246 mm) |
| Product Box Length | 7.72 in (196 mm) |
| Product Box Width | 1.75 in (44 mm) |
| Product Style | Panel Air Filter |
| Weight | 0.8 lb (0.3 kg) |
This Part Fits these Vehicles
| Make | Model | Years | Notes & Specs |
| BMW | 3 SERIES | 2000-2002 | 316CI | 316I 1.6L L4 F/I - All INCL. E46 for 2000 & 105BHP for 2002 |
| BMW | 3 SERIES | 1998-2002 | 316I 1.9L L4 F/I - All |
| BMW | 3 SERIES | 1999-2001 | 318CI | 318I 1.9L L4 F/I - All |
| BMW | 3 SERIES | 1996-1998 | 318I 1.9L L4 F/I - Non-US |
| BMW | 3 SERIES | 1999 | 318TI 1.9L L4 F/I - US |
| BMW | 3 SERIES | 1999-2005 | 320CI 2.0L L6 F/I - E46 |
| BMW | 3 SERIES | 2000-2005 | 320CI | 320I 2.2L L6 F/I - All |
| BMW | 3 SERIES | 1998-2000 | 320I 2.0L L6 F/I - All INCL. E46 for 1998-1999 |
| BMW | 3 SERIES | 1999-2000 | 323CI 2.5L L6 F/I - All INCL. E46 for 1999 |
| BMW | 3 SERIES | 1998-2000 | 323I 2.5L L6 F/I - All INCL. E46 for 1998-1999 |
| BMW | 3 SERIES | 2000-2007 | 325CI 2.5L L6 F/I - All |
| BMW | 3 SERIES | 2000-2005 | 325I 2.5L L6 F/I - All to 2004 INCL. 192BHP & US for 2005 |
| BMW | 3 SERIES | 2001-2005 | 325TI 2.5L L6 F/I - All |
| BMW | 3 SERIES | 2000-2005 | 325XI 2.5L L6 F/I - All |
| BMW | 3 SERIES | 1999-2000 | 328CI 2.8L L6 F/I - All |
| BMW | 3 SERIES | 1998-2000 | 328I 2.8L L6 F/I - All INCL. Non-US for E46 for 1998-1999 |
| BMW | 3 SERIES | 2000-2006 | 330CI 3.0L L6 F/I - All INCL. US for 2005 |
| BMW | 3 SERIES | 2000-2005 | 330I 3.0L L6 F/I - All INCL. US for 2005 |
| BMW | 3 SERIES | 2000-2005 | 330XI 3.0L L6 F/I - All INCL. US for 2005 |
| BMW | M3 | 2000-2007 | 3.2L L6 F/I - All |
| BMW | X3 | 2004-2005 | 2.5L L6 F/I - US |
| BMW | X3 | 2004-2006 | 3.0L L6 F/I - All |
