The AEM 22-685C Performance Air Intake System is a free-flowing, mandrel-bent aluminum tube air induction system designed to replace the restrictive factory air filter and air intake tubing while retaining the factory air box on some Hyundai Sonata and KIA Optima models. The air intake system comes with a replacement AEM high-flow air filter and a free-flowing aluminum intake tube that easily connects to your vehicle’s factory air box and engine throttle body to dramatically increase air flow into your engine. With more air flowing through the custom-tuned intake tube you experience more horsepower and acceleration throughout the engine’s RPM range. The intake tube is finished with an attractive and durable gunmetal gray powder-coat that provides a clean, high-performance look under the hood. The AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before servicing is needed (depending on driving conditions). The air intake is designed for easy installation with commonly available tools. The intake tube accommodates factory emissions control devices including the valve cover breather line and vent line (where applicable). This air intake system is street legal in all 50 US states and comes with AEM's Lifetime Limited Warranty.
An inexpensive and easy horsepower upgrade
Designed to improve throttle response and engine sound
Low restriction aluminum intake tube
Simplistic installation requires little mechanical experience
Lasts up to 100,000 miles before service is required (depending on driving conditions)
Replaces stock air filter and intake tube while retaining the factory air box
Washable and reusable lifetime air filter
AEM Lifetime Limited Warranty
Estimated Horsepower Gain
4 HP @ 4500 RPM
Air Filter Color
Air Filter Material
Air Filter Outlet Shape
AEM Cold Air Intake System
Air Filter Height
1.688 in (43 mm)
Intake Pipe Color / Finish
Intake Pipe Material
CARB EO Number
Street Legal In All US States
See Vehicle Applications
TUV Approved (Europe)
6.1 lb (2.8 kg)
Product Box Height
8.5 in (216 mm)
Product Box Length
18.25 in (464 mm)
Product Box Width
14.5 in (368 mm)
Mounting Hardware Included
No cross references found for this part
Wrench, Extension, Flat Blade Screwdriver, Allen Wrench
Custom-engineered tubes deliver better airflow than you get with a stock intake. More air means better performance.
Using cotton gauze instead of typical folded paper, our filters increase airflow while providing excellent engine protection.
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