-23%
Click to zoom in
SKU: 33-2209 | UPC: 024844085580
K&N 33-2209 Replacement Air Filter: 2002-2009 Audi A4/RS4/S4 Drop-In
The K&N 33-2209 is a washable reusable high-flow air filter with layered oiled cotton media for more airflow and better contaminant capture. It serves as a direct drop-in replacement for factory air filters in 2002-2009 Audi A4 S4 RS4 models. Gain horsepower and acceleration while protecting your engine for the vehicle's life.
Key Features
- 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form a mesh that blocks and traps dirt and contaminants.
- Clean Every 5 Years: Service only every 75000 miles under normal highway conditions or 5 years at 15000 miles annually.
- Easy Installation: Pre-oiled filter drops straight into factory airbox for fast performance gains with no tools needed.
- Engineered Power: Advanced media design delivers more horsepower acceleration and engine performance.
- Reusable Saves Money: Washable design saves up to $125 over 200000 miles compared to disposable OEM filters.
Product Notes
- Pre-oiled and ready for immediate drop-in use in compatible airboxes.
- Clean with K&N cleaning kit every 75000 miles for long-term performance.
- Reduces landfill waste versus 200 million annual disposable filters.
Installation Notes
- Direct drop-in replacement takes minutes.
- No vehicle modifications or cutting required.
- Fits factory airbox hardware perfectly.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2008 | Audi | A4 | Base |
| 2003-2009 | Audi | A4 | Cabriolet |
| 2002-2008 | Audi | A4 Quattro | Avant |
| 2002-2008 | Audi | A4 Quattro | Base |
| 2004-2009 | Audi | A4 Quattro | Cabriolet |
| 2007-2008 | Audi | RS4 | Base |
| 2008 | Audi | RS4 | Cabriolet |
| 2004-2008 | Audi | S4 | Avant |
| 2004-2008 | Audi | S4 | Base |
Why Choose K&N?
- Decades of engineering high-flow filtration for street and racing.
- Built with premium materials for lifetime durability.
- Backed by No-Hassle Lifetime Limited Warranty.
Frequently Asked Questions
-
Q: Does the 33-2209 fit my 2005 Audi A4 Quattro?
A: Yes it fits 2002-2008 A4 Quattro Base and Avant plus other listed models directly into the factory airbox. -
Q: What filter media is used?
A: Layered oiled cotton gauze provides high airflow while trapping contaminants effectively. -
Q: What is the warranty coverage?
A: No-Hassle Lifetime Limited Warranty covers the filter for your vehicle's lifespan with standard limitations.
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Protective box 10.25 x 9.75 x 3.75 inches
- Weight: 1.6 lbs product 1.9 lbs shipping
Air Filters
Air filters and intake filtration parts for cars, trucks, SUVs, Jeeps, and diesel platforms are stocked at Black Ops Auto Works. Shop direct-fit filters, drop-in replacement filters, universal clamp-on filters, cabin air filters, HVAC filters, engine breather filters, pre-filters, and velocity stacks for Hellcat, Trackhawk, TRX, Grand Cherokee, Challenger, Charger, Camaro, Corvette, Mustang, F-150, Tacoma, Tundra, BMW, and Honda platforms. Every product is filterable by year, make, model, trim, engine, and filter dimension so the correct part ships the first time. Black Ops Auto Works carries 3,397 air filter SKUs across direct-fit, universal, cabin, and pre-filter categories. What This Collection Covers Air filters remove dirt, dust, and debris from air entering the engine or cabin. This collection spans OE-style direct-fit and drop-in filters, universal cone and clamp-on filters for custom intakes, cabin and HVAC filters for interior air, engine breather filters for crankcase ...
View Air Filters Products
Air Filters - Drop In
Drop in air filters and replacement panel filters for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop reusable and dry media panel filters that fit directly into your factory air box from K&N, aFe, AEM, Injen, BMC, and GReddy for vehicles ranging from Corvette and Mustang to Porsche, BMW, and Ford Super Duty diesel trucks. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct filter ships the first time. Black Ops Auto Works carries 1,453 drop in air filter SKUs across dozens of vehicle platforms. What This Category Covers Drop in air filters replace the factory paper filter element inside your existing air box without changing the intake tubing or housing. This collection spans reusable oiled cotton filters, dry synthetic media filters, and OEM style replacement panels sized to fit factory air box dimensions across nearly every make and model. Reusable and Dry Media Options Reusable oiled cotton filters from K&...
View Air Filters - Drop In Products
K&N Engineering
K&N Engineering filters and intakes for Jeep, RAM, Dodge, Chevy, Ford, Toyota, BMW, and Cadillac platforms are stocked at Black Ops Auto Works. Shop cold air intakes, Aircharger and NextGen intake systems, reusable panel filters, drop-in filters, universal clamp-on filters, oil filters, cabin filters, fuel filters, and filter cleaning kits for HEMI, Cummins diesel, EcoBoost, and LS/LT engine builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 1,927 K&N Engineering SKUs across intake, filtration, and maintenance categories. What This Brand Covers K&N Engineering built its reputation on reusable, high flow air filtration. This collection spans complete cold air intake systems, direct fit replacement filters, universal clamp-on filters for custom builds, and maintenance items like oil filters, fuel filters, and cabin filters. Cold Air Intakes and Intake Systems K&am...
View K&N Engineering Products