AEM Induction 21-791C Performance Cold Air Intake System for Lexus IS200t and IS300

The AEM-21-791C Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Lexus IS200T L4 2.0L models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is located in the original air box space and is protected by a heat shield which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the valve cover breather hose. The tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). The air intake system is easy to install with commonly available tools. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the AEM-21-791C vehicle applications to determine the legal status for each vehicle. AEM's Performance Cold Air Intake Systems are designed, tuned and dyno-tested to give your engine more power and acceleration by replacing the restrictive factory air filter, air intake tubing and air box assembly. Associated products: AEM-1-4007 Air Filter Wrap, AEM-21-2113DK DryFlow Air Filter, AEM-1-1000 Air Filter Cleaner

• Utilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.
• AEM Lifetime Limited Warranty

The AEM Induction 21-791C Performance Cold Air Intake System is engineered to replace the restrictive factory air filter, intake tubing, and airbox assembly on select Lexus IS200t and IS300 applications. Designed, tuned, and dyno-tested for the specified vehicles, this system helps improve airflow to the engine for potential gains in horsepower, torque, throttle response, and acceleration.

The intake uses a large AEM Dryflow synthetic air filter positioned in the factory airbox location. Its oil-free, washable, and reusable filter media delivers efficient airflow while helping trap damaging contaminants. A protective heat shield helps separate the filter from engine-compartment heat, supporting cooler intake temperatures and consistent performance. The filter may be serviceable for up to 100,000 miles, depending on driving conditions and maintenance requirements.

Mandrel-bent aluminum intake tubing features a durable gunmetal gray powder-coated finish and is designed to accommodate the engine's factory emissions-control equipment, including the valve cover breather hose. Installation can be completed with commonly available tools. The AEM 21-791C includes an AEM Lifetime Limited Warranty. This product is not CARB approved and may not be legal for sale or use in California or other states that adopt California emissions standards; verify vehicle-specific regulations before purchase or installation.

Fitment: Fits select 2016-2017 Lexus IS200t and 2018-2020 Lexus IS300 models with the L4 2.0L engine, as specified by AEM. Associated products include the AEM 1-4007 Air Filter Wrap, AEM 21-2113DK DryFlow Air Filter, and AEM 1-1000 Air Filter Cleaner.

What's Included

• AEM 21-791C cold air intake system
• AEM Dryflow washable, reusable air filter
• Heat shield and installation hardware
• Installation components for factory emissions-control connections

Features:

• Performance airflow: Replaces restrictive factory intake components to support improved horsepower, torque, throttle response, and acceleration.
• Dryflow synthetic filter: Uses oil-free, washable, and reusable filter media for efficient airflow, contaminant protection, and long-term serviceability.
• Heat protection: Positions the filter in the original airbox area and includes a heat shield designed to help reduce intake air temperature.
• Durable construction: Features mandrel-bent aluminum tubing with a gunmetal gray powder-coated finish and provisions for the factory valve cover breather hose.

Fitments:
2016 Lexus IS200t Base
2016 Lexus IS200t F Sport
2017 Lexus IS200t Base
2017 Lexus IS200t F Sport
2018 Lexus IS300 Base
2018 Lexus IS300 F Sport
2019 Lexus IS300 Base
2019 Lexus IS300 F Sport
2020 Lexus IS300 Base
2020 Lexus IS300 F Sport
2021 Lexus IS300 Base
2022 Lexus IS300 Base
2023 Lexus IS300 Base
2024 Lexus IS300 Base
2024 Lexus IS300 F Sport
2024 Lexus IS300 F Sport Design
2025 Lexus IS300 Base
2025 Lexus IS300 F Sport
2025 Lexus IS300 F Sport Design

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1