| Year | Make | Model |
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| 2014 - 2021 | Subaru | WRX |
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AEM 18+ Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake | Subaru Impreza (14-21) (21-836C)
AEM 18+ Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake | Subaru Impreza (14-21) (21-836C)
SKU:21-836C
Out of stock
Regular price
$316.72 USD
Regular price
$349.99 USD
Sale price
$316.72 USD
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The AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake is a performance upgrade designed to enhance engine airflow and increase horsepower and torque. Constructed with a mandrel-bent aluminum intake tube and featuring an oversized AEM DRYFLOW synthetic washable air filter, this system ensures optimal airflow, filtration, and durability. The conical filter design allows for up to 100,000 miles of service under normal highway conditions, reducing maintenance needs. A custom heat shield is included to protect intake air from engine bay heat, further improving performance and efficiency. This intake system provides a significant upgrade over stock components, delivering improved throttle response and power gains for spirited driving.
Designed specifically for 2018 and newer Subaru Impreza WRX and STI models with H4-2.5L turbocharged engines, this cold air intake is a direct bolt-on replacement that requires no additional modifications. It is suitable for street and performance-oriented driving, offering increased airflow for better engine response and power output. The kit includes the intake tube, washable filter, heat shield, and hardware necessary for installation. Compatible with models equipped with the factory turbocharged H4-2.5L engine, this intake system is ideal for enthusiasts seeking reliable, high-performance airflow upgrades for daily driving or track use.
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Overview
Overview
AEM Induction Cold Air Intake
Fits 2018 Subaru Impreza WRX/STI with H4-2.5L Turbo
Part #: 21-836C
Overview
The AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake is a high-performance upgrade designed to enhance your vehicle’s airflow and overall engine response. Crafted for enthusiasts seeking improved power and torque, this intake system combines advanced materials and engineering to deliver a noticeable driving experience. Whether you're looking to boost your vehicle’s responsiveness or improve its efficiency, this cold air intake is a reliable choice that supports your performance goals while maintaining durability and ease of use.Key Features
This intake system features a combination of quality materials and thoughtful design to optimize airflow and filtration. Key features include:
- Oversized, conical AEM DRYFLOW synthetic washable air filter for long-lasting performance
- Mandrel-bent aluminum intake tube for smooth airflow and reduced turbulence
- Custom heat shield to help protect intake air from engine bay heat
- High-quality hardware for secure installation and durability
- Designed specifically for 2018 Subaru Impreza WRX/STI models with 2.5L turbocharged engines
Construction & Design
The intake system is constructed with precision-machined mandrel-bent aluminum tubing, ensuring consistent diameter and smooth airflow paths. The oversized synthetic filter is engineered for maximum surface area, supporting up to 100,000 miles between services under normal highway conditions. The heat shield is designed to minimize intake air temperature, helping to maintain optimal engine performance and efficiency.
Driving Feel & Feedback
Installing this cold air intake can improve throttle response and engine sound, providing a more engaging driving experience. The enhanced airflow supports better combustion, which can translate into improved acceleration and overall engine responsiveness, making your Subaru feel more lively and responsive on the road.
Installation & Fitment
This system is designed for straightforward installation with high-quality hardware, fitting directly onto your vehicle’s existing intake points. Proper fitment ensures optimal performance and a secure, leak-free connection.
What’s Included
The package includes the oversized washable air filter, mandrel-bent aluminum intake tube, heat shield, and all necessary hardware for installation.
