{"product_id":"aem-2018-subaru-wrx-sti-2-5l-h4-f-i-cold-air-intake-system-wrinkle-red","title":"AEM 2018 Subaru WRX STI 2.5L H4 F\/I Cold Air Intake System - Wrinkle Red","description":"The AEM 21-836WR 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 Subaru WRX STI 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 textured red powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the mass air flow sensor. 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 and it is backed by AEM's Lifetime Limited Warranty. 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 21-836WR vehicle applications to determine the legal status for each vehicle.\nAEM's Performance Cold Air Intake Systems are 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.\n\u003cul\u003e\n  \u003cli\u003eUtilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.\u003c\/li\u003e\n  \u003cli\u003eAEM Lifetime Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnhance your 2018 Subaru WRX STI with the AEM 21-836WR Performance Cold Air Intake System, engineered to boost horsepower and torque by replacing your vehicle’s restrictive factory air filter and intake housing. Designed, tuned, and dyno-tested specifically for Subaru WRX STI models, this system optimizes airflow for improved engine performance and acceleration. The oversized AEM Dryflow synthetic washable air filter ensures outstanding airflow, filtration, and long-term value, with the ability to be used up to 100,000 miles before cleaning, depending on driving conditions. Located in the original air box space and protected by a heat shield, the filter reduces intake air temperature, which translates into increased power output. The system's mandrel-bent aluminum intake tubing features a durable textured red powder-coated finish, providing both strength and aesthetic appeal. It is developed to accommodate factory emissions control devices, including the mass air flow sensor, ensuring compatibility and compliance. Installation is straightforward with common tools, and the entire kit is backed by AEM’s Lifetime Limited Warranty. This cold air intake system is compliant with EPA standards, offering a significant upgrade over stock components without compromising emissions or vehicle legality in most regions. Whether you're looking for increased horsepower, improved throttle response, or enhanced engine sound, the AEM 21-836WR offers a reliable and performance-driven solution for Subaru WRX STI enthusiasts. Please verify vehicle compatibility and legal status in your area before installation, as some AEM intake systems are not legal for sale or use in California and other states adopting California emission standards.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eUtilizes a washable, reusable, oil-free synthetic filter media for enhanced airflow and filtration\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHeat shield reduces intake air temperature for increased horsepower\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMandrel-bent aluminum tubing with textured red powder-coated finish for durability and style\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngineered to retain factory emissions control devices including the mass air flow sensor\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEasy installation with commonly available tools\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBacked by AEM's Lifetime Limited Warranty\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEPA compliant with regional legal considerations\u003c\/li\u003e\u003c\/ul\u003e","brand":"AEM Induction","offers":[{"title":"Default Title","offer_id":53456882991418,"sku":"aem21-836WR","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0025\/9709\/3420\/files\/c838a15a5a87afee46ad92963e8a1e6d.jpg?v=1778793100","url":"https:\/\/www.kamispeed.com\/products\/aem-2018-subaru-wrx-sti-2-5l-h4-f-i-cold-air-intake-system-wrinkle-red","provider":"KamiSpeed.com","version":"1.0","type":"link"}