Air and Fuel Air Cleaners, Filters, Intakes and Components

AEM

Cold Air Intake System

$429.99

SKU: 21-414R

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The AEM 21-414R is a performance cold air intake system designed to increase horsepower and torque. It replaces the factory air filter and intake housing with a low-restriction aluminum tubing and an oversized, washable, reusable synthetic air filter.

Constructed from mandrel-bent aluminum with a durable red powder-coated finish, the intake tubing accommodates the engine's factory emissions control devices. The AEM Dryflow air filter features an oil-free synthetic media that can last up to 100,000 miles before cleaning. The system is backed by AEM's Lifetime Limited Warranty.
Show original supplier description
The AEM 21-414R Performance Cold Air Intake System is engineered to boost your vehicle's horsepower and torque by replacing the restrictive factory air filter and intake housing. This system is specifically designed, tuned, and dyno-tested to fit certain Honda Civic EX models. Air enters the AEM 21-414R through an oversized Dryflow synthetic washable air filter, which offers superior airflow, filtration, and performance. The filter's strategic relocation to the passenger-side wheel well helps to lower intake air temperatures, further increasing horsepower. The intake tubing is crafted from mandrel-bent aluminum and features a durable red powder-coated finish for both aesthetics and longevity. This design ensures compatibility with the engine's original emissions control components, including the breather hose, inlet air temperature sensor, and Fuel Injection Air Control Valve vacuum line. The tapered cylinder-shaped AEM Dryflow air filter utilizes an oil-free synthetic media, designed to provide up to 100,000 miles of service before requiring cleaning, depending on driving conditions. This cold air intake system is supported by AEM's Lifetime Limited Warranty. It is important to note that some AEM air intakes may not be legal for sale or use in California and other states that follow California emission standards; verification of legal status for specific vehicles is recommended. The AEM 21-414R cold air intake system is designed for specific Honda Civic EX models. It is crucial to consult the vehicle applications to ensure proper fitment and legal compliance in your region.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAEM
Part Number21-414R
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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