AEM 21-730C Cold Air Intake System (Non-CARB Compliant)

Why Upgrade Your Genesis Coupe with the AEM 21-730C?

Because your 3.8 L V6 wants to breathe.

• Improved airflow over the restrictive factory box.

• Sharper throttle feel—when you step on it, you’ll feel the difference.

• A deeper, more engaging induction sound.

• AEM’s Dryflow washable, oil-free filter means simpler maintenance.

• Mandrel-bent aluminum intake tube with gunmetal grey finish for aesthetics + performance.

• Valid choice for daily driving and spirited use alike.

AEM Cold Air Intake Systems are designed to produce horsepower and torque gains. They replace the restrictive factory airbox and air filter to give you better performance and better engine sound.

Key Features

• Mandrel-bent aluminum intake tube with durable gunmetal powder-coat finish.

• Oversized AEM Dryflow synthetic filter (oil-free, washable).

• Heat-shield and proper placement of the filter to reduce intake air temperature.

• Designed to retain factory MAF sensor, emissions hardware and mounting points—no major hacking required.

• Backed by AEM’s lifetime limited warranty.

• Important: Not necessarily legal in all states (check CARB status) for this specific application.

AEM cold air intakes relocate the air filter outside the engine compartment so cooler air can be fed into your engine. Cooler air carries more oxygen, which translates into a more intense explosion in the combustion chamber for more horsepower and torque.

Performance Expectations

With this intake installed on the Genesis Coupe 3.8L, you can expect:

• Quicker throttle response and improved engine feel.

• Better airflow at higher RPMs which helps the V6 breathe.

• Enhanced induction sound: you’ll hear the car more.

• Noticeable but modest power gains (manufacturer doesn’t always publish full dyno figures for this model).

• Good foundation for further performance upgrades (exhaust, tune, etc.).

AEM Cold Air Intakes include an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration, and performance while allowing easy oil-free cleaning.

Daily‐Driver Friendly

Yes—this upgrade works for daily usage:

• Compatible with factory ECU: no immediate tune required to see benefit.

• Filter maintenance is easy thanks to the oil-free Dryflow element.

• Keeps drivability and practicality intact while improving performance.

• Just double-check emission compliance if you’re in California or a state with similar restrictions.

They include a mandrel-bent aluminum intake tube and high quality hardware designed to reduce restriction and reduce intake temperature. The design and components of each intake system vary so consult the installation instructions for more information on the contents of each part number.

Installation Overview

Estimated install time: 45-75 minutes with basic hand tools.
Typical steps:

1. Remove the factory airbox, intake tubing and ducting.

2. Install the heat-shield and brackets from the AEM kit.

3. Bolt in the mandrel-bent intake tube and fit the Dryflow filter.

4. Transfer the MAF sensor to the new tube, secure all clamps and check clearances.

5. Start the engine, verify fitment, monitor for any check engine lights.

This Air Intake cannot be sold in California. It is not legal for use in California or other states adopting California emission standards.