--- product_id: 253603424 title: "AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Ta" brand: "aem" price: "R$1139" currency: BRL in_stock: true reviews_count: 5 url: https://www.desertcart.com.br/products/253603424-aem-21-203dk-universal-dryflow-clamp-on-air-filter-round store_origin: BR region: Brazil --- # 3D synthetic Dryflow tech Boosts horsepower & torque Lifetime limited warranty AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Ta **Brand:** aem **Price:** R$1139 **Availability:** ✅ In Stock ## Summary > 💨 Elevate your engine’s breathability—unleash power without the hassle! ## Quick Answers - **What is this?** AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Ta by aem - **How much does it cost?** R$1139 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/253603424-aem-21-203dk-universal-dryflow-clamp-on-air-filter-round) ## Best For - aem enthusiasts ## Why This Product - Trusted aem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power Up Your Ride:** Experience noticeable horsepower and torque gains with advanced airflow design. - • **Next-Gen Filtration:** 3D synthetic Dryflow medium combines depth loading and structural wire for superior airflow. - • **Durability You Can Trust:** Backed by a lifetime limited warranty for long-term peace of mind. - • **Maintenance-Free Performance:** No oiling needed—clean easily and keep your engine breathing freely. - • **Universal Fit, Precision Engineering:** Designed for vehicle-specific fit with a sleek round profile that upgrades any engine bay. ## Overview The AEM 21-203DK Universal DryFlow Clamp-On Air Filter features cutting-edge synthetic Dryflow technology developed with K&N expertise, delivering enhanced airflow and increased horsepower without the need for oiling. Its 3D filtering medium ensures easy cleaning and durability, supported by a lifetime limited warranty. Designed for vehicle-specific fit, this round air filter is a high-performance replacement part that transforms your engine’s efficiency and power. ## Description AEM Dryflow Air Filters were developed in collaboration with K&N, the inventor of High Flow Air Filters. We adopted some of the best elements of cotton air filters into a new generation synthetic Dryflow Air filter. The three-dimensional filtering medium uses both depth loading and structural screen wire to enhance airflow capabilities and make the filter incredibly easy to clean. The result is a true performance air filter that does not require oiling, carries a lifetime limited warranty and is capable of increasing horsepower and torque. ## Features - Tether Tools - Length: 15′ (4.6m) - Data Cable – Do not use for charging ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B000N253HA | | Automotive Fit Type | Vehicle Specific Fit | | Brand Name | AEM | | Country Of Publication | USA | | Customer Reviews | 4.6 4.6 out of 5 stars (270) 4.6 out of 5 stars | | Fit Type | Vehicle Specific Fit | | Global Trade Identification Number | 00840879014841 | | Included Components | Air Filters - Universal Fit | | Item Dimensions L X W X H | 13L x 13W x 13H centimeters | | Item Weight | 1.2 Pounds | | Manufacturer | Tether Tools | | Manufacturer Part Number | 21-203DK | | Model Number | 21-203DK | | Number Of Items | 1 | | Oem Equivalent Part Number | 21-203DK | | Product Grade | Replacement Part | | Shape | Round | | Upc | 840879014841 | ## Product Details - **Brand:** AEM - **Fit type:** Vehicle Specific Fit - **OEM part number:** 21-203DK - **Product dimensions:** 13L x 13W x 13H centimeters - **Product grade:** Replacement Part ## Images ![AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Ta - Image 1](https://m.media-amazon.com/images/I/61c0qlFYoqL.jpg) ![AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Ta - Image 2](https://m.media-amazon.com/images/I/51g0egki1EL.jpg) ![AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Ta - Image 3](https://m.media-amazon.com/images/I/81OiTK0nbFL.jpg) ![AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Ta - Image 4](https://m.media-amazon.com/images/I/71poWdgY7dL.jpg) ![AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Ta - Image 5](https://m.media-amazon.com/images/I/81IYyKiyIkL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Bien perooo *by on Reviewed in Mexico 8 February 2021* esta muy bien de diseño pero es muy grande para mí cafetera , y esa tela texturizada no permite que el café fluya bien, fuera de eso vale lo que cuesta 🤤👌 ### ⭐ سيء *by on Reviewed in Saudi Arabia 30 May 2026* سيء ### ⭐⭐⭐⭐⭐ Perfect fit for 2004 G35 "Nismo" CAI *by on Reviewed in the United States 12 April 2012* I ordered this to replace the oiled filter on my Nismo CAI (actually we all know the truth now: it's a re-branded AEM!) for my 2004 G35 Coupe. The AEM site does indeed have a list of all their filters, but it's a HUGE list with some subtle differences and their support wasn't very responsive when I asked to confirm the right part number for this specific application. If you want to be sure like I did: It's a perfect fit!I was excited to move to the dry-flow since it's easier to clean, comes standard on the newer G37 intakes, was co-developed with K&N (should still flow well), and the oiled filters can cause problems with our MAFs if excess oil gets pulled up through the intake. It's a little tricky to install yourself (the main reason I wanted to be extra sure it would fit before ordering), but there are a lot of G35 forum posts showing how to do it by removing your driver side fender liner...allocate an hour to remove one wheel (the extra space is worth it), pull a few clips and metric #10 bolts and you'll be glad you did -- the car sounds better and accelerates noticeably smoother.Also, in case it helps anyone... I had the CAI installed around 2009 and replaced the filter in 2012. A number of years, but I don't drive much at all... some reported replacing it after 50k+ miles. In three years I only put ~20-30k on the car (work, grocery store, occasional road trip -- I really try to save the engine). Still, the oiled filter I replaced was (in my opinion) FILTHY! I'm hoping the dry-flow filter will "shake itself off" from bumps and other road vibration more than the oiled (like I read), but still think minimally cleaning the filter every 15-30k is a good goal for those obsessed with performance. Then again, I'm pretty OCD. :-)Go for it... You won't be sorry! ## Frequently Bought Together - AEM 21-203DK Universal DryFlow Clamp-On Air Filter: Round Tapered; 3 in (76 mm) Flange ID; 5.125 in (130 mm) Height; 6 in (152 mm) Base; 5.125 in (130 mm) Top, Red - AEM 14000 Air Filter Wrap, black (1-4000) - AEM 1-1000 Air Filter Cleaner with Trigger Sprayer - 32 oz. --- ## 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.com.br/products/253603424-aem-21-203dk-universal-dryflow-clamp-on-air-filter-round](https://www.desertcart.com.br/products/253603424-aem-21-203dk-universal-dryflow-clamp-on-air-filter-round) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-09-07*