--- product_id: 2942106 title: "High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 2003-2021 Subaru: (See Product Description for Select Models) 33-2304" brand: "k&n" price: "519.64 DT" currency: TND in_stock: true category: "K&N" url: https://www.desertcart.tn/products/2942106-high-flow-original-lifetime-engine-air-filter-increase-power-premium store_origin: TN region: Tunisia --- # Boosts horsepower & acceleration +50% Washable & reusable for eco-friendly longevity Easy drop-in install, fits factory air box perfectly High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 2003-2021 Subaru: (See Product Description for Select Models) 33-2304 **Brand:** k&n **Price:** 519.64 DT **Availability:** ✅ In Stock ## Summary > ⚡ Drive smarter, breathe cleaner, last longer — the ultimate Subaru power move! ## Quick Answers - **What is this?** High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 2003-2021 Subaru: (See Product Description for Select Models) 33-2304 by k&n - **How much does it cost?** 519.64 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/2942106-high-flow-original-lifetime-engine-air-filter-increase-power-premium) ## Best For - k&n enthusiasts ## Why This Product - Trusted k&n brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lifetime Durability:** Built with premium cotton gauze and rugged materials, this filter lasts the life of your vehicle—no replacements needed. - • **Eco-Champion Upgrade:** Washable and reusable design reduces waste, replacing 10+ disposable filters and saving you money. - • **Unleash Engine Power:** State-of-the-art media increases airflow by up to 50%, delivering noticeable horsepower and acceleration gains. - • **Effortless Installation:** Pre-treated and engineered for a seamless fit into your Subaru’s factory air box—performance upgrade in minutes. - • **Trusted Quality, Made in USA:** Backed by a limited lifetime warranty and crafted with precision for Subaru models from 2003-2021. ## Overview The K&N High-Flow Original Lifetime Engine Air Filter is a premium, washable air filter designed specifically for Subaru models (2003-2021). Engineered to increase airflow by up to 50%, it boosts horsepower and acceleration while providing superior engine protection with four layers of cotton gauze media. This eco-friendly filter requires cleaning only every 75,000 miles, offering lifetime durability backed by a limited warranty. Easy to install and proudly made in the USA, it’s the go-to upgrade for Subaru drivers seeking lasting performance and sustainability. ## Description K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.Compatible Vehicles:2011-2015 LANCIA Thema2006-2007 SUBARU B9 Tribeca2016-2017 SUBARU Crosstrek2008-2017 SUBARU Exiga2008-2019 SUBARU Forester2011-2013 SUBARU Forester Turbo2008-2016 SUBARU Impreza2007-2009 SUBARU Impreza II2007-2008 SUBARU Impreza II WRX2007-2008 SUBARU Impreza II WRX STI2008-2008 SUBARU Impreza III2008-2008 SUBARU Impreza III WRX STI2008-2014 SUBARU Impreza WRX2008-2014 SUBARU Impreza WRX STi2005-2019 SUBARU Legacy2005-2009 SUBARU Legacy GT2003-2010 SUBARU Legacy III2003-2014 SUBARU Legacy IV2014-2019 SUBARU Levorg2003-2021 SUBARU Liberty2009-2014 SUBARU Liberty Exiga2004-2019 SUBARU Outback2003-2008 SUBARU Outback II2009-2009 SUBARU Outback III2005-2006 SUBARU Outback XT2005-2014 SUBARU Tribeca2012-2021 SUBARU WRX2012-2018 SUBARU WRX STI2012-2017 SUBARU XV2013-2015 SUBARU XV Crosstrek ## Features - ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance - RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime - 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants - CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles) - ULTIMATE LONGEVITY: No-hassle limited lifetime warranty on stock replacement K&N air filters- limitations apply - EASY INSTALLATION: K&N Air Filters are pre-treated and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains - ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters - MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000COC0GQ | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #34,208 in Automotive ( See Top 100 in Automotive ) #499 in Automotive Replacement Air Filters | | Brand Name | K&N | | Customer Reviews | 4.7 4.7 out of 5 stars (2,281) | | Fit Type | Vehicle Specific Fit | | Global Trade Identification Number | 00024844111562 | | Included Components | K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with 2003-2019 Subaru (Forester, Legacy, Outback, Impreza, WRX, Levorg, Crosstrek, Tribeca) 33-2304 | | Item Dimensions L x W x H | 4.53"L x 4.09"W x 0.67"H | | Item Type Name | K&N 85-9541 Gasket | | Item Weight | 0.4 Kilograms | | Manufacturer | K&N | | Manufacturer Part Number | 33-2304 | | Manufacturer Warranty Description | No Warranty | | Model Number | 33-2304 | | OEM Equivalent Part Number | 16546AA090, 16546AA10, 16546AA10A, 16546AA120, 16546AA12A | | Product Grade | Replacement Part | | Shape | Rectangular | | UPC | 024844111562 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** K&N - **Fit Type:** Vehicle Specific Fit - **OEM Part Number:** 16546AA090, 16546AA10, 16546AA10A, 16546AA120, 16546AA12A - **Product Dimensions:** 4.53"L x 4.09"W x 0.67"H - **Product Grade:** Replacement Part ## Images ![High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 2003-2021 Subaru: (See Product Description for Select Models) 33-2304 - Image 1](https://m.media-amazon.com/images/I/81aX95EH7XL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: K & N official website says this model filter fits a 2014 Subaru Outback. The seller here on Amazon says this filter does not fit it....?** A: The heading says 2003-2019 Subaru Outbacks and more. **Q: Anybody try this in a 2016 Subaru Crosstrek? Did it fit and is it worth the extra cost?** A: I have it on my '16 Crosstrek. I noticed a little better mileage, and a slight bump in HP. It's also easy to clean and I never have to replace it **Q: Is this filter run dry or oiled?** A: Hi, it uses a proprietary fine oil that is sprayed onto the substrate filter material you can clean the filter with they're cleaning spray and water allowed to dry and then reapply the oil about once every couple of years. **Q: Is this filter pre-oiled? Is it usable out of the box or needs to be oiled before installing?** A: It is pre-oiled, you just drop it in after take it out of the box, then you should inspected every 15-20000 mile to cleaned an re oiled with Original K&N cleaning/oiling kit(about$10) and last forever. ## Frequently Bought Together - K&N High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 2003-2021 Subaru: (See Product Description for Select Models) 33-2304 - K&N Premium Cabin Air Filter: High Performance,Washable, Clean Airflow to your Cabin: Designed For Select 2008-2019 Subaru (Levorg, XV, Forester, WRX, Crosstrek, Impreza), VF2055 , Black - K&N Air Filter Cleaning Kit: Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit-99-5000, Multi --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/2942106-high-flow-original-lifetime-engine-air-filter-increase-power-premium](https://www.desertcart.tn/products/2942106-high-flow-original-lifetime-engine-air-filter-increase-power-premium) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-10*