The AEM 21-811C Performance Cold Air Intake System is engineered to boost your vehicle’s horsepower and torque by enhancing airflow and drawing in cooler, denser air. At the heart of this system is a cone-shaped AEM Dryflow filter, crafted from synthetic filter media that ensures exceptional airflow, filtration, and performance. By relocating the air filter to a lower position at the front of the vehicle, this system allows access to cooler air, which is crucial for maximizing engine efficiency.
One of the standout features of this intake system is its maintenance-friendly design. There’s no need to oil the filter, and it can go up to 100,000 miles before needing a cleaning, depending on your driving conditions. The intake tube, made from durable aluminum and finished in a sleek powder-coated gray, is mandrel-bent to minimize airflow restrictions at the bends. This free-flowing air intake system replaces the restrictive factory air pipe and air box, ensuring your engine gets the air it needs to perform at its best.
The factory PCV valve and recirculation hose mount seamlessly onto the intake tube, making installation straightforward. Please note that while some AEM air intakes are compliant with California emissions standards, the 21-811C is not legal for sale or use in California. Be sure to check the vehicle applications to confirm its legal status for your specific model.
Key Features
Air Filter Color: Red
Air Filter Material: Non-woven Synthetic
Air Filter Outlet Shape: Round
Washable Air Filter: Yes
Clamp Material: Stainless Steel
Estimated Horsepower Gain: 7 HP @ 3800 RPM
Intake Pipe Material: Aluminum
Intake Pipe Color: Gunmetal Gray
Weight: 9.5 lb (4.3 kg)
Warranty: Limited Lifetime
Specifications
Air Box Included: No
California Restricted: Not legal for sale or use in California
Clamps Included: 3
Couplers Included: 1
Mass Air Flow Sensor Adapter: Included when required
Replacement Filter: 21-2157DK
Street Legal in All US States: No
Prop 65 Compliance: Yes
Package Type: Box
Fitment
For detailed information regarding the fitment of the AEM 21-811C for specific vehicles, please refer to the vehicle application guide.
Customer Reviews
“This intake system is a game changer! I noticed a significant improvement in throttle response and overall power. Installation was straightforward, and the sound it produces is fantastic!”
“I’ve tried several intakes before, but the AEM 21-811C stands out. It’s well-built, easy to maintain, and truly enhances the driving experience. Highly recommend!”
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