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Come join the fun at the 76th world famous Sturgis motorcycle rally in South Dakota

Sturgis is the largest motorcycle rally in the nation; it has taken place in the Black Hills of Rapid City, South Dakota every year for almost a century. Over half a million motorcycle enthusiasts travel from all over the country to partake in this week-long celebration of two-wheeled machines from August 8th – 14th. K&N founders Ken and Norm first invented washable reusable air filters for motorcycles and K&N has an extensive lineup of innovate motorcycle products, Sturgis makes the perfect venue to honor that history and introduce a new breed of performance intake for select Harley-Davidson models.

The new 63-1134 and 63-1137 aircharger intake systems provide classic good looks and are guaranteed to increase horsepower

If you plan on going, be sure to visit the K&N truck & trailer, which will be located at the Black Hills Harley-Davidson dealership on Harley Drive. Not only will there be beautiful bikes on display (including our 2006 Custom Softail by Roland Sands Design), K&N will be formally unveiling two new intake systems for Harley Bikes, #63-1134 and #63-1137. These new AirCharger kits are guaranteed to increase horsepower and torque with a high-flow air filter, while looking sharp with a classic old-school style never featured before on a K&N motorcycle product. The new kits will be available for purchase beginning Saturday August 6th at Black Hills Harley-Davidson in Rapid City, J&P Cycles and Cycle Solutions locations in Sturgis. In the meantime, use the online Search by Vehicle tool to find out what K&N makes for your ride.

The 2006 custom K&N Softail will be on display at the K&N Truck & Trailer at the Black Hills Harley-Davidson dealership

The new 63-1134 and 63-1137 aircharger intake systems come with a die-cast aluminum throttle-body mounting plate and mounting hardware making installation easy and secure.

In addition to new products, K&N will also be participating in many events during Sturgis. K&N is sponsoring the Michael Lichter "Motorcycles as Art Exhibition - Skin & Bones" during the 35th anniversary of the Buffalo Chip beginning at 5pm on Sunday August 7th. The exhibition culminates with the unveiling of the new K&N equipped custom Roland Sands Design Indian Scout on the Buffalo Chip main stage. See our K&N performance motorcycle air intakes in action at the Black Hills Pro-Flat Track races taking place Tuesday August 9th, including the Super Hooligan Flat Track Race sponsored by K&N. And of course, our trailer will be open for visitors throughout the event, so there will be no shortage of opportunities to grab a K&N rep if you have questions about products for your bike. You can also utilize the vehicle application search on our website to look up air filters, intakes, and oil filters for your ride.

Those who have not had the opportunity to experience the Sturgis Motorcycle Rally yet will definitely want to add it to their bucket list. With so much to see and do dedicated to the spirit of motorcycle riding and bike culture, Sturgis is the premiere destination for any diehard motorcycle enthusiast. Rides through the scenic Black Hills, live entertainment, great food and world famous hospitality keep enthusiasts coming back for more year after year. This is an event you don't want to miss!

Not legal for sale or use on any pollution controlled motor vehicle in California or states adopting California emission procedures. See knfilters.com for CARB status on each part for a specific vehicle.

Doug’s 1967 Camaro when it was rescued from the California High Desert

Beautifully hand-formed widened wheel tubs for 1967 Camaro.

It had been sitting in the high desert of California for who knows how long. The front clip and subframe had been long ago stripped off the car. Oddly it had the words "Doug’s Car" spray-painted on the driver’s door. But both the owner (not Doug) and the potential buyer who came to see it knew it wasn’t a candidate for the scrap pile. After all, it was a completely solid, rust-free 1967 Camaro tub. Rodger Lee of Ironworks Speed and Kustom in Bakersfield, California, towed it home, thinking that he’d do a quick rebuild and make a few bucks.

LT4 V8 with intake pipe leading to a K&N RC 4680 air filer

The SpeedTech front subframe with front suspension, sprung with RideTech coilovers with Ron Sutton “Secret Sauce High Grip” valving

"Doug’s Car" sat in the shop for about 18 months when one of his best customers, Greg Heinrich of Fairyway Chevrolet, heard about the car. He challenged Rodger to turn "Doug’s Car" into a something amazing. And that’s how this once almost discarded shell went from bare metal, to a down-and-dirty street car project, and finally to one of the finest Pro Touring cars under construction.

Rodger named the car the Fairway 1967 Camaro, after Heinrich’s dealership, as he had with his previous project for this customer, the Fairway 55. He said he likes the idea of naming it after the customer’s Chevrolet dealership, rather than some bird of prey or made up name, as to him it evokes the likes of Yenko Chevrolet, a Pennsylvania car dealership that modified already hot Chevys in the ‘60s and added its name to the car.

Wilwood calipers finished in Porsche 919 green

Heat shield being fabricated to keep cold air flowing to the K&N RC-4680 filter

Powering the Fairway is an LT4 crate motor identical to that installed in the 2015 Corvette Z06. This engine is normally installed in the most powerful production car Chevrolet has ever made-the LT4 supercharged 6.2L V8 small-block. The LT4 utilizes technologies first seen in the 2014 Corvette’s LT1 Gen-V small block, including direct injection and continuously variable valve timing, while leaping over the supercharger technology on the previous-generation Corvette ZR1’s LS9 engine. The engine is capable of producing at least 650 horsepower and 650 lb-ft of torque, breathing through a K&N RC-4680 tapered air filter. Rodger believes this is the first installation of an LT4 in a Generation One Camaro.

Some of the undercar details of the yet unfinished Fairway Camaro are a SpeedTech front subframe and front and rear suspension, RideTech coilovers with Ron Sutton "Secret Sauce High Grip" valving, Wilwood disc brakes with calipers color-matched to the calipers of a Porsche 919, Forgeline 19×11" and 19×12.5" monoblock wheels, one-of-a kind aluminum rear spoiler, a custom front valance that’s been dropped 1.5" and a unique front spoiler.

Exhaust outlets being fabricated into the rear quarter panels

Absolutely unique rear spoiler cost $5000 to fabricate in aluminum

Power is managed by a T56 Magnum Transmission, originally designed for the Dodge Viper. Headers are 100% in-house constructions while the rest of the exhaust is custom-built around Magnaflow components and spent gases exit the car through unique outlets fitted to the rear quarter panels. Inside the car is a special Dakota Digital dash and a four-point roll cage to keep everyone safe. On the exterior, Rodger gave the world a glimpse of the car in bare metal and pretty much wowed anyone who say the images. It’s now begun the transition to Corvette Arctic White, which will come in stages over the next few months.

Look for the final version of The Fairway 1967 Camaro aka "Doug’s Car" to break cover sometime in January.

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.

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

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

The K&N 33-3035 air filter will increase air flow by as much as 50%, and is designed to add power to your M50-powered BMW.

Some of the features that many car companies are touting on their current cars or have added them in recent years include lightweight grey iron cylinder block, aluminum cylinder head, four valves per cylinder, zero-clearance hydraulic lifters, hollow camshafts, coil-on-plug ignition system, dual spray pattern sequential fuel injection, and a composite intake manifold. All of the features listed were part of the BMW M50 in-line six-cylinder engine first introduced in 1990 (an amazing 26 years ago!).

Well-respected for its engineering, durability, high output, and smooth operation, the M50 has won Engine of the Year accolades in Europe, North America and Asia. And even though the horsepower of the M50 has always been high, it can be improved upon with a K&N replacement air filter 33-2070.

Besides basic hand tools, everything you need to install a K&N replacement air filter in your M50-powered BMW is right in the box.

In terms of specifics, the BMW M50 is an inline six cylinder engine that was produced from 1990-1996. It was first introduced in the E34 520i and 525i, replacing the M20 engine. It began to be phased out following the introduction of the M52 engine in 1994.

In September 1992, the M50 was upgraded to M50TU specifications (which stands for Technical Update), which added variable valve timing to the intake camshaft (called single VANOS by BMW). Applications include the 5-Series, 7-Series, M3, Z3, Z4 and others.

The K&N 33-2070 replacement air filter has been specifically developed to increase up to 50% more air flow, which is designed to add power to your M50-powered BMW. More air flow coming through the filter can result in improved response when you step on the throttle, and more torque throughout the operating range of the engine.

K&N air filters are assembled from multiple layers of a unique oiled cotton filter media, rather than the easily-clogged paper used in many original equipment and replacement filters. The oiled cotton construction not only allows for increased air flow but also provides excellent filtration properties to ensure your BMW’s long engine life.

The only maintenance required for a K&N replacement air filter is a service you can easily do yourself. At up to 50,000 miles of driving (depending on your driving conditions) use a 99-5000 K&N air filter cleaning kit to clean and re-oil your air filter, bringing it back to like-new condition and ready for another 50,000 miles of driving. Your one K&N air filter is designed to last for the lifetime of your vehicle, which K&N guarantees will perform for up to 10 years or 1,000,000 miles without requiring replacement. For full details visit the K&N Million Mile Limited Warranty.

You can order the filter simply using the part number 33-2070 as well as order the air filter cleaning kit 99-5000.

To find additional K&N upgrades for cars, trucks, scooters, motorcycles, motorhomes, or almost anything with an engine, use the K&N Search by Vehicle tool. Find an authorized K&N dealer nearby using the K&N Dealer Search.

The 33-2070 replacement air filter fits the following vehicles:
2006 BMW Z4 2.5L L6 F/I - US
2006 BMW Z4 2.2L L6 F/I
2006 BMW X3 2.5L L6 F/I - Non-US, to 8/06
2005 BMW Z4 3.0L L6 F/I
2005 BMW Z4 2.5L L6 F/I
2005 BMW Z4 2.2L L6 F/I
2005 BMW X3 2.5L L6 F/I - Non-US
2004 BMW Z4 3.0L L6 F/I
2004 BMW Z4 2.5L L6 F/I
2004 BMW Z4 2.2L L6 F/I
2004 BMW X3 2.5L L6 F/I - Non-US
2004 BMW 530I 3.0L L6 F/I - E39
2004 BMW 525I 2.5L L6 F/I - E39
2004 BMW 520I 2.2L L6 F/I - E39
2004 BMW 520I 2.0L L6 F/I
2003 BMW Z4 3.0L L6 F/I
2003 BMW Z4 2.5L L6 F/I
2003 BMW Z4 2.2L L6 F/I
2003 BMW Z3 3.2L L6 F/I
2003 BMW Z3 3.0L L6 F/I
2003 BMW Z3 2.2L L6 F/I
2003 BMW Z3 2.0L L6 F/I
2003 BMW 530I 3.0L L6 F/I - US
2003 BMW 530I 3.0L L6 F/I - E39
2003 BMW 525I 2.5L L6 F/I - US
2003 BMW 525I 2.5L L6 F/I - E39
2003 BMW 520I 2.2L L6 F/I - E39
2003 BMW 520I 2.0L L6 F/I - E39
2002 BMW Z3 3.2L L6 F/I
2002 BMW Z3 3.0L L6 F/I
2002 BMW Z3 2.5L L6 F/I
2002 BMW Z3 2.2L L6 F/I
2002 BMW Z3 2.0L L6 F/I
2002 BMW 530I 3.0L L6 F/I
2002 BMW 525I 2.5L L6 F/I
2002 BMW 520I 2.2L L6 F/I
2002 BMW 520I 2.0L L6 F/I
2001 BMW Z3 3.2L L6 F/I
2001 BMW Z3 3.0L L6 F/I
2001 BMW Z3 2.5L L6 F/I
2001 BMW Z3 2.2L L6 F/I
2001 BMW Z3 2.0L L6 F/I
2001 BMW 728IL 2.8L L6 F/I
2001 BMW 728I 2.8L L6 F/I
2001 BMW 530I 3.0L L6 F/I
2001 BMW 525I 2.5L L6 F/I
2001 BMW 520I 2.2L L6 F/I
2001 BMW 520I 2.0L L6 F/I
2000 BMW Z3 3.2L L6 F/I
2000 BMW Z3 3.0L L6 F/I
2000 BMW Z3 2.8L L6 F/I
2000 BMW Z3 2.5L L6 F/I
2000 BMW Z3 2.2L L6 F/I
2000 BMW Z3 2.0L L6 F/I
2000 BMW M3 3.0L L6 F/I
2000 BMW 728IL 2.8L L6 F/I
2000 BMW 728I 2.8L L6 F/I
2000 BMW 530I 3.0L L6 F/I
2000 BMW 528I 2.8L L6 F/I
2000 BMW 525I 2.5L L6 F/I
2000 BMW 523I 2.5L L6 F/I
2000 BMW 520I 2.2L L6 F/I
2000 BMW 520I 2.0L L6 F/I
2000 BMW 323TI 2.5L L6 F/I
1999 BMW Z3 3.2L L6 F/I
1999 BMW Z3 2.8L L6 F/I
1999 BMW Z3 2.5L L6 F/I
1999 BMW Z3 2.0L L6 F/I
1999 BMW M3 3.2L L6 F/I
1999 BMW M3 3.0L L6 F/I
1999 BMW M COUPE 3.2L L6 F/I
1999 BMW 728IL 2.8L L6 F/I
1999 BMW 728I 2.8L L6 F/I
1999 BMW 528I 2.8L L6 F/I
1999 BMW 523I 2.5L L6 F/I
1999 BMW 520I 2.0L L6 F/I
1999 BMW 328IS 2.8L L6 F/I - US
1999 BMW 328IC 2.8L L6 F/I - US, E36
1999 BMW 328I 2.8L L6 F/I - US
1999 BMW 328I 2.8L L6 F/I - Non-US, E36
1999 BMW 325I 2.5L L6 F/I
1999 BMW 323TI 2.5L L6 F/I
1999 BMW 323IS 2.5L L6 F/I
1999 BMW 323I 2.5L L6 F/I - E36
1999 BMW 323CI 2.5L L6 F/I
1999 BMW 320I 2.0L L6 F/I - E36
1998 BMW Z3 3.2L L6 F/I
1998 BMW Z3 2.8L L6 F/I
1998 BMW M3 3.2L L6 F/I
1998 BMW M3 3.0L L6 F/I
1998 BMW M COUPE 3.2L L6 F/I
1998 BMW 728IL 2.8L L6 F/I
1998 BMW 728I 2.8L L6 F/I
1998 BMW 528I 2.8L L6 F/I
1998 BMW 523I 2.5L L6 F/I
1998 BMW 520I 2.0L L6 F/I
1998 BMW 328IS 2.8L L6 F/I
1998 BMW 328IC 2.8L L6 F/I - US
1998 BMW 328I 2.8L L6 F/I - US
1998 BMW 328I 2.8L L6 F/I - Non-US, E36
1998 BMW 328CI 2.8L L6 F/I
1998 BMW 325I 2.5L L6 F/I
1998 BMW 323TI 2.5L L6 F/I
1998 BMW 323IS 2.5L L6 F/I
1998 BMW 323I 2.5L L6 F/I - US
1998 BMW 323I 2.5L L6 F/I - E36
1998 BMW 323CI 2.5L L6 F/I
1998 BMW 320I 2.0L L6 F/I - E36
1997 BMW Z3 3.2L L6 F/I
1997 BMW Z3 2.8L L6 F/I
1997 BMW M3 3.2L L6 F/I
1997 BMW M3 3.0L L6 F/I
1997 BMW 728IL 2.8L L6 F/I
1997 BMW 728I 2.8L L6 F/I
1997 BMW 528I 2.8L L6 F/I
1997 BMW 523I 2.5L L6 F/I
1997 BMW 520I 2.0L L6 F/I
1997 BMW 328IS 2.8L L6 F/I
1997 BMW 328I 2.8L L6 F/I
1997 BMW 328CI 2.8L L6 F/I
1997 BMW 325I 2.5L L6 F/I
1997 BMW 323TI 2.5L L6 F/I
1997 BMW 323IS 2.5L L6 F/I
1997 BMW 323I 2.5L L6 F/I
1997 BMW 320I 2.0L L6 F/I
1996 BMW M3 3.2L L6 F/I
1996 BMW M3 3.0L L6 F/I
1996 BMW 728IL 2.8L L6 F/I
1996 BMW 728I 2.8L L6 F/I
1996 BMW 528I 2.8L L6 F/I
1996 BMW 523I 2.5L L6 F/I
1996 BMW 520I 2.0L L6 F/I - E39
1996 BMW 328IS 2.8L L6 F/I
1996 BMW 328I 2.8L L6 F/I
1996 BMW 325I 2.5L L6 F/I
1996 BMW 323I 2.5L L6 F/I
1996 BMW 320I 2.0L L6 F/I
1995 BMW M3 3.2L L6 F/I
1995 BMW M3 3.0L L6 F/I
1995 BMW 728I 2.8L L6 F/I
1995 BMW 528I 2.8L L6 F/I
1995 BMW 523I 2.5L L6 F/I
1995 BMW 328I 2.8L L6 F/I
1995 BMW 325IS 2.5L L6 F/I
1995 BMW 325I 2.5L L6 F/I
1995 BMW 325CI 2.5L L6 F/I
1995 BMW 323I 2.5L L6 F/I
1995 BMW 320I 2.0L L6 F/I
1994 BMW M3 3.0L L6 F/I
1994 BMW 728I 2.8L L6 F/I
1994 BMW 325IS 2.5L L6 F/I
1994 BMW 325I 2.5L L6 F/I
1994 BMW 325CI 2.5L L6 F/I
1994 BMW 320I 2.0L L6 F/I
1993 BMW M3 3.0L L6 F/I
1993 BMW 325IS 2.5L L6 F/I
1993 BMW 325I 2.5L L6 F/I - US
1993 BMW 325I 2.5L L6 F/I - Non-US, E36
1993 BMW 325CI 2.5L L6 F/I - 24v
1993 BMW 320I 2.0L L6 F/I - US
1993 BMW 320I 2.0L L6 F/I - E36
1992 BMW M3 3.0L L6 F/I
1992 BMW 325IS 2.5L L6 F/I
1992 BMW 325I 2.5L L6 F/I - E36
1992 BMW 325I 2.5L L6 F/I
1992 BMW 320I 2.0L L6 F/I - E36
1992 BMW 320I 2.0L L6 F/I
1991 BMW 325I 2.5L L6 F/I - E36
1991 BMW 320I 2.0L L6 F/I - E36
1990 BMW 320I 2.0L L6 F/I - E36

By increasing the flow of air, K&N replacement air filters are designed to give better throttle response and improved torque at all points of your Honda engine’s operating range.

This pair of Honda engines is reminiscent of the television infomercials where the announcers read “but wait, there’s more.” Both the Honda D and K engines had long service lives in a surprising variety of vehicles, with any number of versions to suit the applications. Clearly, not only were they well designed but ongoing R&D kept their performance at the level of newer engines. What’s surprising (or maybe not) is that all these applications utilize the same K&N replacement air filter 33-2104.

The Honda D series inline four cylinder engine was installed in a number of different of models, most commonly the Honda Civic, CRX, and the first-gen Acura Integra between 1984 and 2005. Engine displacement ranges between 1.2 and 1.7 liters. The D Series engine was constructed as either SOHC or DOHC, and was at times fitted with Honda’s VTEC variable valve timing system.

Everything you need to install a K&N replacement air filter in your Honda is in the box.

The Honda K series engine is also an inline four cylinder engine introduced in 2001. The K series engines were equipped with dual overhead camshafts and utilized roller rockers to reduce friction. The engines use coil-on-plug ignition for each spark plug. This eliminates the need for a conventional distributor in favor of allowing the ECU to control ignition timing based on engine sensor inputs. Two versions of the Honda i-VTEC system have been used on the K series engine, one optimized for fuel economy, the other performance.

And once you’ve installed your K&N 33-2104 air filter you’ve eliminated the need to purchase and replace paper filters for the life of your Honda. The only maintenance needed is a service you can do yourself in just a short time. At up to 50,000 miles or 80,000 kilometers (depending on your driving conditions) clean and re-oil your air filter with a K&N air filter cleaning kit, returning it to like-new condition. Your one K&N air filter is designed to last for the lifetime of your vehicle, which K&N guarantees will perform for up to 10 years or 1,000,000 miles without requiring replacement. For full details visit the K&N Million Mile Limited Warranty.

You can order the filter simply by using the part number 33-2104 as well as order the cleaning kit 99-5000.

For all K&N air filters that fit the Honda Civic, visit Honda Civic air filters. To find additional K&N upgrades for cars, trucks, scooters, motorcycles, motorhomes, or almost anything with an engine, use the K&N Search by Vehicle tool. Find an authorized K&N dealer nearby using the K&N Dealer Search.

The 33-2104 replacement air filter fits the following vehicles:
2005 HONDA HRV 1.6L L4 F/I
2004 HONDA HRV 1.6L L4 F/I
2003 HONDA HRV 1.6L L4 F/I
2002 HONDA HRV 1.6L L4 F/I
2002 HONDA CR-V I 2.0L L4 F/I
2001 HONDA HRV 1.6L L4 F/I
2001 HONDA CR-V I 2.0L L4 F/I
2001 HONDA CR-V 2.0L L4 F/I
2001 HONDA CIVIC V 1.6L L4 F/I - 114/160BHP
2001 HONDA CIVIC V 1.5L L4 F/I - 3/4-Door
2000 HONDA HRV 1.6L L4 F/I
2000 HONDA CR-V I 2.0L L4 F/I
2000 HONDA CR-V 2.0L L4 F/I
2000 HONDA CIVIC V 1.6L L4 F/I - 114/160BHP
2000 HONDA CIVIC V 1.5L L4 F/I - 3/4-Door
2000 HONDA CIVIC SI 1.6L L4 F/I
2000 HONDA CIVIC HX 1.6L L4 F/I
2000 HONDA CIVIC GX 1.6L L4 F/I
2000 HONDA CIVIC EX 1.6L L4 F/I
1999 HONDA HRV 1.6L L4 F/I
1999 HONDA CR-V I 2.0L L4 F/I
1999 HONDA CR-V 2.0L L4 F/I
1999 HONDA CIVIC VALUE PACKAGE 1.6L L4 F/I
1999 HONDA CIVIC V 1.6L L4 F/I - 114/160BHP
1999 HONDA CIVIC V 1.5L L4 F/I - 3/4-Door
1999 HONDA CIVIC SI 1.6L L4 F/I
1999 HONDA CIVIC HX 1.6L L4 F/I
1999 HONDA CIVIC GX 1.6L L4 F/I
1999 HONDA CIVIC EX 1.6L L4 F/I
1998 HONDA CR-V I 2.0L L4 F/I
1998 HONDA CR-V 2.0L L4 F/I
1998 HONDA CIVIC V 1.6L L4 F/I - 114/160BHP
1998 HONDA CIVIC V 1.5L L4 F/I - 3/4-Door
1998 HONDA CIVIC SI 1.6L L4 F/I
1998 HONDA CIVIC HX 1.6L L4 F/I
1998 HONDA CIVIC GX 1.6L L4 F/I
1998 HONDA CIVIC EX 1.6L L4 F/I
1997 HONDA CR-V I 2.0L L4 F/I
1997 HONDA CR-V 2.0L L4 F/I
1997 HONDA CIVIC V 1.6L L4 F/I - 114/160BHP 1997 HONDA CIVIC V 1.5L L4 F/I - 3/4-Door 1997 HONDA CIVIC SI 1.6L L4 F/I
1997 HONDA CIVIC HX 1.6L L4 F/I
1997 HONDA CIVIC EX 1.6L L4 F/I
1996 HONDA CR-V I 2.0L L4 F/I
1996 HONDA CIVIC V 1.6L L4 F/I - 114/160BHP 1996 HONDA CIVIC V 1.5L L4 F/I
1996 HONDA CIVIC SI 1.6L L4 F/I
1996 HONDA CIVIC HX 1.6L L4 F/I
1995 HONDA CR-V I 2.0L L4 F/I
1995 HONDA CIVIC V 1.6L L4 F/I - 114/160BHP 1995 HONDA CIVIC V 1.5L L4 F/I