

AEM 21-485R Red Cold Air Intake System Fits select: 2004-2011 MAZDA RX8
Key item features
- Vehicle Compatibility: Specifically designed for select 2004-2011 Mazda RX8 models, replacing factory intake components.
- Enhanced Performance: Engineered to increase horsepower and torque, improving throttle response and engine performance.
- Advanced Filtration: Features an oversized, oil-free AEM Dryflow synthetic air filter, washable and reusable for up to 100,000 miles.
- Optimized Airflow: Air filter is strategically positioned above the passenger-side wheel well to draw in cooler air.
- Durable Construction: Mandrel-bent aluminum intake tubing with a durable red powder-coated finish and gradually expanding inlet pipes.
- Seamless Integration: Accommodates factory emissions control systems, including the MAF sensor and breather hoses.
Specs
- Vehicle modelAEM-21-485R
- Vehicle year2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Vehicle makeMazda
- Vehicle fitment typeSpecific
- BrandAEM
- Automotive specialty part typeCold Air Intakes
- Free shipping
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| Product | Viewing this itemAEM 21-485R Red Cold Air Intake System Fits select: 2004-2011 MAZDA RX8 ![]() $421.31 current price $421.31 | AEM 21-8504DC Gun Metal Brute Force Intake System ![]() $399.99 current price $399.99 |
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| Vehicle model | AEM-21-485RAEM 21-485R Red Cold Air Intake System Fits select: 2004-2011 MAZDA RX8 | AEM-21-8504DCAEM 21-8504DC Gun Metal Brute Force Intake System |
|---|---|---|
| Vehicle year | 2004AEM 21-485R Red Cold Air Intake System Fits select: 2004-2011 MAZDA RX8 | -AEM 21-8504DC Gun Metal Brute Force Intake System |
| Vehicle make | MazdaAEM 21-485R Red Cold Air Intake System Fits select: 2004-2011 MAZDA RX8 | NissanAEM 21-8504DC Gun Metal Brute Force Intake System |
| Vehicle fitment type | SpecificAEM 21-485R Red Cold Air Intake System Fits select: 2004-2011 MAZDA RX8 | SpecificAEM 21-8504DC Gun Metal Brute Force Intake System |
About this item
Product details
Unlock your Mazda RX-8’s performance potential with the AEM 21-485R Cold Air Intake System, engineered to deliver noticeable gains in horsepower and torque. Designed, tuned, and dyno-tested specifically for RX-8 models, this system replaces the restrictive factory air intake assembly with a high-flow setup for improved engine breathing. Air enters the system through an oversized, oil-free AEM Dryflow synthetic air filter that offers superior filtration and airflow. The filter is strategically positioned above the passenger-side wheel well to help draw in cooler air, enhancing combustion efficiency and power output. The intake tube is constructed from mandrel-bent aluminum and features a durable red powder-coated finish, complete with gradually expanding inlet pipes to optimize airflow velocity. Designed to work with factory emissions equipment, including the MAF sensor and breather hoses, this system offers a seamless upgrade and is backed by AEM’s Lifetime Limited Warranty.
- AEM 21-485R Red Cold Air Intake System Fits select: 2004-2011 MAZDA RX8
- Designed specifically for Mazda RX-8 models
- Replaces factory intake components to increase horsepower and torque
- Includes oversized AEM Dryflow synthetic air filter—oil-free, washable, and reusable
- Air filter positioned above the passenger-side wheel well for cooler air intake
- Mandrel-bent aluminum intake tubing with durable red powder-coated finish
- Features gradually expanding inlet pipes to improve airflow efficiency
- Accommodates factory emissions control systems including MAF sensor and breather hoses
- Filter provides up to 100,000 miles of use before cleaning is required (depending on conditions)
- Enhances throttle response and engine performance
- Backed by AEM’s Lifetime Limited Warranty
Specifications
Vehicle model
Vehicle year
Vehicle make
Vehicle fitment type
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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