Air and Fuel› Air Cleaners, Filters, Intakes and Components

AEM

DRYFLOW Cold Air Intake System

$387.99

SKU: 21-425

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The AEM 21-425 is a polished cold air intake system designed to increase horsepower and torque. It relocates the air filter outside the engine compartment to draw in cooler air, which contains more oxygen for a more efficient combustion. The system's inlet pipe is tuned for optimal engine resonance and airflow.

Constructed from lightweight, mandrel-bent aluminum, the intake pipe ensures maximum flow. The system includes reinforced TIG-welded brackets and fittings for durability, along with a complete hardware kit with soft mounts for a perfect fit. It features AEM's lifetime DRYFLOW Synthetic air filter, which is 99.4% efficient and filters down to one micron without needing oil.
Show original supplier description
The AEM 21-425 is a polished cold air intake system engineered to enhance your vehicle's performance by delivering cooler, denser air directly to the engine. By relocating the air filter outside the engine bay, this system significantly reduces air intake temperatures, leading to increased horsepower and torque. This intake system is manufactured in the USA with high standards of construction. The polished inlet pipe is crafted from lightweight aircraft aluminum and features mandrel bends for maximum airflow efficiency. Reinforced TIG-welded brackets and fittings provide added durability, while the included hardware kit with soft mounts ensures a precise and secure installation. The system comes with AEM's lifetime DRYFLOW Synthetic air filter, renowned for its 99.4% efficiency and its ability to filter particles down to one micron without the need for oiling. This AEM Cold Air Intake is designed for the 2003-2005 Dodge Neon SRT-4 with the L4.2429cc engine. It is 50-state legal or pending legality, ensuring compliance across all US states. Comprehensive installation instructions, decals, and a license plate frame are included to facilitate the installation process.

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 Number21-425
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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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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