K&N's 33-2125 air filter is made from a durable cotton gauze, designed and engineered to provide greater surface area for better filtering capabilities and more air flow than a stock paper filter.
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If you are a loyal Audi driver, you may have owned several of this, the world's best engineered, most stylish, expertly built and distinctively detailed luxury passenger car and sport sedan.
You appreciate what your Audi can do for you daily and what it has done globally on road and track. You may follow Audi in GT (Gran Turismo) Racing, DTM (Deutsche Tourenwagen Meisterschaft) touring car series, LeMans and the World Endurance Championship, or the TT Cup with a sense of belonging as a member of the fraternity of Audi. The engineering successes and innovations derived from the Audi racing program are passed along to the passenger cars to make them superior road-going vehicles that you may simply love for your uses and always bring you home.
You are part of a legendary automotive institution and your cars have been honored on many occasions in many designations. Between its inception in 2004 (for a 2005 award) and 2016, the World Car of the Year awards named Audi to winning positions eight times in three categories, starting with 2005 when the A6 was the very first World Car of the Year. Numerous international juries, automotive journals and motoring marketplaces recognize Audi excellence annually. Recently the industry publication Auto Test named the Q7 3.0 TDI Quattro its 2016 Overall Winner and the A6 Avant 2.0 TDI was Best Upper Midsize Car for innovation, technology and efficiency. The 65-member panel for the International Engine of the Year award voted the Audi 2.5 TFSI engine (in the RS Q3) its 2016 winner. The accolades can fill several pages of this website.
The same rectangular, open-top air box design allows the K&N 33-2125 replacement air filter to fit more than 170 Audi models built between 1994 and 2005
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Suffice it to say, if you own an Audi from any year, you and your car are winners. But if you have an early car, you are fortunate indeed. Be it an early 1994 A4 with the new Supertouring Car-derived 1.8-liter 20-valve engine; a first-generation Quattro that debuted Audi's adjustable air suspension system; a big 2004 Quattro V8, or maybe a 1999 RennSport, your car shares a power plant with sophisticated air induction and filter components with 170+ others built between 1994 and 2005.
To be driving and enjoying one of these 1994 to 2005 examples, you have taken special care to keep it road-worthy. Part of that attention to maintenance detail includes regular service of the engine air intake filter, which you have been dutifully replacing on schedule. But there is a better way to keep your Audi's engine airways clear, and that is with the K&N 33-2125 washable, reusable replacement air filter.
While these Audi engines have been developed and modified nearly annually, their air intake engineering has kept much of the same specifications, allowing one air filter to be appropriate for these cars for just over a decade. All the models listed below can be fitted with the same 33-2125 panel style, open-top, rectangular cotton gauze filter that actually provides greater filter surface area and increased air flow to the engine. The filter is designed to provide more horsepower and torque for crisper throttle response, a plus for any iteration of any marque.
Add to these three advantages the fact that the K&N air filter is washable, reusable and warranted for 10 years or 1 million miles, so you won't ever need to buy a new engine air filter again.
The recommended cleaning interval of the 33-2125 is up to 50,000 miles, depending on driving conditions. The filter is cleaned and re-oiled using the 99-5000 air filter cleaning kit.
Your investment in Audi excellence deserves a matching investment in excellent engine protection from K&N. To source a K&N replacement air filter for your vehicle, use K&N's online Search by Vehicle tool. To purchase, please visit an authorized K&N dealer, who can be found in nearly every quadrant of the globe using the K&N Dealer Search.
The K&N 33-2125 replaces these part numbers:
AC Delco A1411C
Audi 058133843
Audi 059133843A
BMC 10201
Fram CA8080
Mann-Hummel C26168
Napa 2295
Purolator A47039
Ryco A1434
Ryco A1618
Skoda 058133843
Wesfil WA5095
Wesfil WA970
WIX 42295
The K&N 33-2125 fits these Audi models:
2005 AUDI ALLROAD QUATTRO 4.2L V8 F/I
2005 AUDI ALLROAD QUATTRO 2.7L V6 F/I
2005 AUDI ALLROAD QUATTRO 2.5L V6 DIESEL
2005 AUDI A6 2.0L L4 F/I - 130BHP
2004 AUDI S6 4.2L V8 F/I
2004 AUDI ALLROAD QUATTRO 4.2L V8 F/I
2004 AUDI ALLROAD QUATTRO 2.7L V6 F/I
2004 AUDI ALLROAD QUATTRO 2.5L V6 DIESEL
2004 AUDI A6 QUATTRO 4.2L V8 F/I - US
2004 AUDI A6 QUATTRO 4.2L V8 F/I - Non-US
2004 AUDI A6 QUATTRO 3.0L V6 F/I
2004 AUDI A6 QUATTRO 2.7L V6 F/I
2004 AUDI A6 3.0L V6 F/I - US
2004 AUDI A6 2.8L V6 F/I
2004 AUDI A6 2.7L V6 F/I
2004 AUDI A6 2.5L V6 DIESEL
2004 AUDI A6 2.4L V6 F/I
2004 AUDI A6 2.0L L4 F/I
2004 AUDI A6 1.9L L4 DIESEL
2004 AUDI A6 1.8L L4 F/I
2003 AUDI S6 4.2L V8 F/I
2003 AUDI RS4 2.7L V6 F/I
2003 AUDI ALLROAD QUATTRO 4.2L V8 F/I
2003 AUDI ALLROAD QUATTRO 2.7L V6 F/I
2003 AUDI ALLROAD QUATTRO 2.5L V6 DIESEL
2003 AUDI A6 QUATTRO 4.2L V8 F/I - US
2003 AUDI A6 QUATTRO 4.2L V8 F/I - Non-US
2003 AUDI A6 QUATTRO 3.0L V6 F/I
2003 AUDI A6 QUATTRO 2.7L V6 F/I
2003 AUDI A6 3.0L V6 F/I
2003 AUDI A6 2.8L V6 F/I
2003 AUDI A6 2.7L V6 F/I
2003 AUDI A6 2.5L V6 DIESEL
2003 AUDI A6 2.4L V6 F/I
2003 AUDI A6 2.0L L4 F/I
2003 AUDI A6 1.9L L4 DIESEL
2003 AUDI A6 1.8L L4 F/I
2003 AUDI A4 2.7L V6 F/I
2002 AUDI S6 4.2L V8 F/I
2002 AUDI S4 2.7L V6 F/I
2002 AUDI RS4 2.7L V6 F/I
2002 AUDI ALLROAD QUATTRO 4.2L V8 F/I
2002 AUDI ALLROAD QUATTRO 2.7L V6 F/I
2002 AUDI ALLROAD QUATTRO 2.5L V6 DIESEL
2002 AUDI A6 QUATTRO 4.2L V8 F/I - US
2002 AUDI A6 QUATTRO 4.2L V8 F/I - Non-US
2002 AUDI A6 QUATTRO 3.0L V6 F/I
2002 AUDI A6 QUATTRO 2.7L V6 F/I
2002 AUDI A6 3.0L V6 F/I
2002 AUDI A6 2.8L V6 F/I
2002 AUDI A6 2.7L V6 F/I
2002 AUDI A6 2.5L V6 DIESEL
2002 AUDI A6 2.4L V6 F/I
2002 AUDI A6 2.0L L4 F/I
2002 AUDI A6 1.9L L4 DIESEL
2002 AUDI A6 1.8L L4 F/I
2002 AUDI A4 2.7L V6 F/I
2001 AUDI S4 2.7L V6 F/I
2001 AUDI RS4 2.7L V6 F/I
2001 AUDI ALLROAD QUATTRO 2.7L V6 F/I
2001 AUDI ALLROAD QUATTRO 2.5L V6 DIESEL
2001 AUDI A6 QUATTRO 4.2L V8 F/I
2001 AUDI A6 QUATTRO 3.0L V6 F/I
2001 AUDI A6 QUATTRO 2.8L V6 F/I
2001 AUDI A6 QUATTRO 2.7L V6 F/I
2001 AUDI A6 2.8L V6 F/I
2001 AUDI A6 2.7L V6 F/I
2001 AUDI A6 2.5L V6 DIESEL
2001 AUDI A6 2.4L V6 F/I
2001 AUDI A6 2.0L L4 F/I
2001 AUDI A6 1.9L L4 DIESEL
2001 AUDI A6 1.8L L4 F/I
2001 AUDI A4 QUATTRO 2.8L V6 F/I
2001 AUDI A4 QUATTRO 1.8L L4 F/I
2001 AUDI A4 2.8L V6 F/I
2001 AUDI A4 2.7L V6 F/I
2001 AUDI A4 2.6L V6 F/I
2001 AUDI A4 2.5L V6 DIESEL - 150BHP
2001 AUDI A4 2.4L V6 F/I
2001 AUDI A4 1.8L L4 F/I
2000 AUDI S4 2.7L V6 F/I
2000 AUDI RS4 2.7L V6 F/I
2000 AUDI ALLROAD QUATTRO 2.7L V6 F/I
2000 AUDI ALLROAD QUATTRO 2.5L V6 DIESEL
2000 AUDI A6 QUATTRO 4.2L V8 F/I
2000 AUDI A6 QUATTRO 2.8L V6 F/I
2000 AUDI A6 QUATTRO 2.7L V6 F/I
2000 AUDI A6 2.8L V6 F/I
2000 AUDI A6 2.7L V6 F/I
2000 AUDI A6 2.5L V6 DIESEL
2000 AUDI A6 2.4L V6 F/I
2000 AUDI A6 2.0L L4 F/I
2000 AUDI A6 1.9L L4 DIESEL
2000 AUDI A6 1.8L L4 F/I
2000 AUDI A4 QUATTRO 2.8L V6 F/I
2000 AUDI A4 QUATTRO 1.8L L4 F/I
2000 AUDI A4 2.8L V6 F/I
2000 AUDI A4 2.7L V6 F/I
2000 AUDI A4 2.6L V6 F/I
2000 AUDI A4 2.5L V6 DIESEL - 150BHP
2000 AUDI A4 2.4L V6 F/I
2000 AUDI A4 1.9L L4 DIESEL
2000 AUDI A4 1.8L L4 F/I
2000 AUDI A4 1.6L L4 F/I
1999 AUDI S4 2.7L V6 F/I
1999 AUDI A6 QUATTRO 2.8L V6 F/I
1999 AUDI A6 2.8L V6 F/I
1999 AUDI A6 2.7L V6 F/I
1999 AUDI A6 2.5L V6 DIESEL
1999 AUDI A6 2.4L V6 F/I
1999 AUDI A6 2.0L L4 F/I
1999 AUDI A6 1.9L L4 DIESEL
1999 AUDI A6 1.8L L4 F/I
1999 AUDI A4 QUATTRO 2.8L V6 F/I
1999 AUDI A4 QUATTRO 1.8L L4 F/I
1999 AUDI A4 2.8L V6 F/I
1999 AUDI A4 2.7L V6 F/I
1999 AUDI A4 2.6L V6 F/I
1999 AUDI A4 2.5L V6 DIESEL
1999 AUDI A4 2.4L V6 F/I
1999 AUDI A4 1.9L L4 DIESEL
1999 AUDI A4 1.8L L4 F/I
1999 AUDI A4 1.6L L4 F/I
1998 AUDI S4 2.7L V6 F/I
1998 AUDI A6 QUATTRO 2.8L V6 F/I - Sedan
1998 AUDI A6 2.8L V6 F/I - AHA Engine
1998 AUDI A6 2.7L V6 F/I
1998 AUDI A6 2.5L V6 DIESEL
1998 AUDI A6 2.4L V6 F/I
1998 AUDI A6 2.0L L4 F/I
1998 AUDI A6 1.9L L4 DIESEL
1998 AUDI A6 1.8L L4 F/I
1998 AUDI A4 QUATTRO 2.8L V6 F/I
1998 AUDI A4 QUATTRO 1.8L L4 F/I
1998 AUDI A4 2.8L V6 F/I
1998 AUDI A4 2.7L V6 F/I
1998 AUDI A4 2.6L V6 F/I
1998 AUDI A4 2.5L V6 DIESEL
1998 AUDI A4 2.4L V6 F/I
1998 AUDI A4 1.9L L4 DIESEL
1998 AUDI A4 1.8L L4 F/I
1998 AUDI A4 1.6L L4 F/I
1997 AUDI S4 2.7L V6 F/I
1997 AUDI A6 2.7L V6 F/I
1997 AUDI A6 2.5L V6 DIESEL - from 7/97
1997 AUDI A6 2.4L V6 F/I
1997 AUDI A6 2.0L L4 F/I
1997 AUDI A6 1.9L L4 DIESEL - from 3/97
1997 AUDI A6 1.8L L4 F/I - from 5/97
1997 AUDI A4 QUATTRO 2.8L V6 F/I
1997 AUDI A4 QUATTRO 1.8L L4 F/I
1997 AUDI A4 2.8L V6 F/I
1997 AUDI A4 2.6L V6 F/I
1997 AUDI A4 2.4L V6 F/I
1997 AUDI A4 1.9L L4 DIESEL
1997 AUDI A4 1.8L L4 F/I
1997 AUDI A4 1.6L L4 F/I
1996 AUDI A4 QUATTRO 2.8L V6 F/I
1996 AUDI A4 2.8L V6 F/I
1996 AUDI A4 2.6L V6 F/I
1996 AUDI A4 1.9L L4 DIESEL
1996 AUDI A4 1.8L L4 F/I
1996 AUDI A4 1.6L L4 F/I
1995 AUDI A4 2.8L V6 F/I
1995 AUDI A4 2.6L V6 F/I
1995 AUDI A4 1.9L L4 DIESEL
1995 AUDI A4 1.8L L4 F/I
1995 AUDI A4 1.6L L4 F/I
1994 AUDI A4 2.8L V6 F/I
1994 AUDI A4 2.6L V6 F/I
1994 AUDI A4 1.9L L4 DIESEL
1994 AUDI A4 1.8L L4 F/I
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