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SKU: 33-5092 | UPC: 024844372789
K&N 2019-2021 Subaru WRX STI 2.5L Replacement Air Filter 33-5092
Upgrade your 2019-2021 Subaru WRX STI 2.5L turbocharged engine with the K&N 33-5092 drop-in replacement air filter. This washable high-flow filter uses layered oiled cotton media to deliver more airflow for increased horsepower and acceleration while trapping contaminants. Designed as a direct fit for your factory air box it installs in minutes for immediate performance gains.
Key Features
- 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form a mesh that blocks and traps dirt and debris from reaching your engine.
- Clean Every 5 Years: Requires cleaning only every 75000 miles under normal highway conditions or 5 years at 15000 miles per year.
- Easy Installation: Pre-oiled and ready to drop into your factory air box for one of the simplest performance upgrades available.
- Engineered Power: Advanced media design boosts horsepower acceleration and overall engine response.
- Reusable and Saves Money: Washable filter cuts costs by up to $125 over 200000 miles compared to disposable OEM filters.
Product Notes
- Filter measures 9.5 in length x 8.75 in width x 1.313 in height with centered rubber flange.
- Clean with K&N cleaning kit and re-oil for long-term performance.
- Product weight 1.1 lb ships in 10.25 x 9.13 x 2.81 in box.
Installation Notes
- Professional installation recommended.
- No tools required direct drop-in replacement for stock filter.
- Compatible with factory air box hardware no modifications needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2021 | Subaru | WRX STI | Base |
| 2019-2021 | Subaru | WRX STI | Limited |
Why Choose K&N?
- Millions of filters sold with proven track record in performance applications.
- High-flow cotton gauze media lasts vehicle lifetime when maintained.
- Precision engineered for exact fit and maximum airflow gains.
Frequently Asked Questions
-
Q: Will this fit my 2020 Subaru WRX STI Limited?
A: Yes the 33-5092 fits all 2019-2021 Subaru WRX STI Base and Limited models with 2.5L turbo engine as a direct OEM replacement. -
Q: What material is used in the filter media?
A: Eight layers of oiled cotton gauze provide high airflow while filtering contaminants effectively. -
Q: What is the warranty coverage?
A: Backed by K&N No-Hassle Lifetime Limited Warranty on stock replacement air filters with some limitations.
Shipping &. Handling
- Method: Standard ground shipping via UPS or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure box measuring 10.25 x 9.13 x 2.81 inches
- Weight: 1.1 lb
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