Unifilter KTM 4-Stroke: 400, 450, 520, 525 01-07 ProComp2 Air Filter
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Vehicles this filter fits
Part number NU 1411ST fits all of the vehicles below. Your vehicle is highlighted.
| Make | Model | Years |
|---|---|---|
| KTM | 250 EXC RACING | 2002-2006 |
| KTM | 250 EXC RACING (EU) | 2001 |
| KTM | 250 EXC RACING SIX DAYS (EU) | 2003 |
| KTM | 400 EXC FACTORY (EU) | 2005 |
| KTM | 400 EXC RACING | 2001-2005 |
| KTM | 400 SX RACING | 2001-2002 |
| KTM | 450 EXC (US) | 2007 |
| KTM | 450 EXC FACTORY (EU) | 2005 |
| KTM | 450 EXC FACTORY RACING | 2007 |
| KTM | 450 EXC RACING | 2003-2007 |
| KTM | 450 EXC RACING SIX DAYS | 2004-2005 |
| KTM | 450 EXC RACING SIX DAYS (EU) | 2006-2007 |
| KTM | 450 SMR | 2005-2007 |
| KTM | 450 SMR (EU) | 2004 |
| KTM | 450 SMS | 2004 |
| KTM | 450 SX | 2006 |
| KTM | 450 SX RACING | 2003-2005 |
| KTM | 450 SX STEVE RAMON | 2005 |
| KTM | 450 SXS | 2006 |
| KTM | 450 SXS RACING | 2003-2005 |
| KTM | 450 XC (EU) | 2007 |
| KTM | 450 XC CROSS COUNTRY | 2004 |
| KTM | 520 EXC RACING | 2001-2002 |
| KTM | 520 SX RACING | 2001-2002 |
| KTM | 525 EXC FACTORY RACING | 2007 |
| KTM | 525 EXC RACING | 2003-2007 |
| KTM | 525 EXC RACING SIX DAYS | 2004-2005 |
| KTM | 525 SMR | 2005 |
| KTM | 525 SX | 2006 |
| KTM | 525 SX RACING | 2003-2005 |
| KTM | 525 SX SUPERMOTO | 2004 |
| KTM | 540 SXS RACING | 2001-2005 |
| KTM | 105 SX | 2006 |
| KTM | 105 SX (US) | 2007-2011 |
| KTM | 125 EXC (EU) | 2004-2007 |
| KTM | 125 EXC SIX DAYS (EU) | 2004-2007 |
| KTM | 125 SX | 2004-2006 |
| KTM | 125 SX TYLA RATTRAY | 2005 |
| KTM | 125 SXS | 2004-2006 |
| KTM | 200 EXC | 2004-2007 |
| KTM | 200 SX | 2004 |
| KTM | 250 EXC | 2004-2007 |
| KTM | 250 EXC (US) | 2004-2005 |
| KTM | 250 EXC FACTORY (EU) | 2005 |
| KTM | 250 EXC SIX DAYS (EU) | 2004-2007 |
| KTM | 250 EXC-F | 2007 |
| KTM | 250 EXC-F (EU) | 2006 |
| KTM | 250 EXC-F SIX DAYS (EU) | 2007 |
| KTM | 250 SX | 2004-2006 |
| KTM | 250 SX-F | 2006 |
| KTM | 250 SX-F (US) | 2005 |
| KTM | 250 SXS | 2004-2006 |
| KTM | 250 SXS-F | 2006 |
| KTM | 250 XC-F (US) | 2007 |
| KTM | 300 EXC | 2004-2007 |
| KTM | 300 EXC SIX DAYS | 2005 |
| KTM | 300 EXC SIX DAYS (EU) | 2006-2007 |
| KTM | 300 EXC-E | 2007 |
| KTM | 540 SXS | 2006 |
| KTM | 560 SMR | 2006-2007 |
| KTM | 85 SX 17/14 | 2005-2012 |
| KTM | 85 SX 19/16 | 2005-2012 |
ProComp2 Air Filter. Suits: KTM 4-Stroke: 400, 450, 520, 525 01-07 Compatible years: 2001, 2002, 2003, 2004, 2005, 2006, 2007.
ProComp2 Dual-Stage Air Filters
Pro-level protection for serious enduro riders and weekend warriors alike
When the dust is thick and the trail is long, your engine needs more than a standard filter. Unifilter’s ProComp2 range is a true two-stage air filter built to keep fine dirt out of your engine in the harshest, dustiest conditions, without choking airflow.
The corrugated outer layer gives you 100% more surface area than a standard filter, so it traps more dirt and keeps breathing for longer. Behind it, a separate inner layer acts as a safety stage, catching anything that makes it through.
Unlike most dual-stage filters, the ProComp2’s layers aren’t bonded together. That means nothing restricts airflow between the stages, and you can pull the layers apart for a faster, more thorough clean.
Why riders choose ProComp2
- Two-stage filtration for maximum protection in extreme dust
- Corrugated outer layer with double the surface area of a standard filter
- Separate, non-bonded layers for better airflow and easier cleaning
- Improved airflow for crisper throttle response and more power
- Designed and made in Australia for Australian conditions
Independently tested airflow
In June 2023, Warspeed Industries independently tested seven air filters for the 2023 KTM 450SX on a SuperFlow SF-400 flow bench at 28 inches of water. The ProComp2 (AU1455ST) flowed 221.92 CFM, more than every competitor filter tested, including the KTM/Twin Air OEM filter, Twin Air Beach Race, Dirtlab, Motorex and Funnelweb.
The only filter that flowed more was our own single-stage [O2Rush]. That means you get dual-stage dust protection with no airflow penalty compared with the other brands tested.
Test conducted 20 June 2023 at 16°C ambient temperature. Chart axis starts at 215 CFM to show differences clearly.
Please note: ProComp2 filters are supplied dry and must be oiled before use. For best results, use Unifilter Filter Fix air filter oil.
Unifilter replacement automotive air filters are designed to give the ultimate in protection while delivering the best performance possible. Designed and made in Australia for Australian conditions.
Features
- Australian made & designed for Australian conditions
- Corrugated outer stage for increased surface area
- Fully serviceable 2 stage element
- Improved power, torque & fuel ecconomy
- Improved filtration
Service Products
Service Products - Filter Oil & Cleaner
Service Products - Filter Oil & Cleaner
Unifilter's foam filter oil is the only 100% mineral based filter oil left on the market. There simply is no better foam filter oil available. Mineral based foam air filter oil does not contain any harsh chemicals or solvents that can affect the foams and glues used to manufacture foam air filters. Mineral Based filter oils also have the added benifit of not drying out like synthetic foam filter oil can. If you want the best protection for your engine there is no better foam air filter oil available.
Unifilter's Foam Air Filter Cleaner is a Citrus based cleaner. Our Citrus Cleaner not only cleans all the dust and dirt out of you filter is also will not have any adverse effect on the foam.