AEM Induction 21-21 Subaru WRX STI 2.5L H4 Cold Air Intake System
- Utilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.
Enhance your Subaru WRX STI's performance with the AEM Induction Part Number aem21-863C cold air intake system. Designed for 2019 to 2021 models, this system is engineered to boost horsepower and torque by improving airflow and filtration efficiency. The system features an oversized, washable synthetic DRYFLOW air filter that is oil-free, allowing for up to 100,000 miles of maintenance-free service under typical highway conditions. The conical filter design maximizes airflow while trapping harmful contaminants, ensuring long-term durability and consistent performance.
The mandrel-bent aluminum intake tube is precisely crafted to optimize air velocity and minimize restrictions, contributing to noticeable improvements in throttle response and overall engine efficiency. A high-quality hardware assembly guarantees a secure fit, while the custom heat shield protects intake air from engine bay heat, maintaining cooler, denser air for better combustion. The factory air duct connects seamlessly to the heat shield, ensuring compatibility with your vehicle's existing components.
This cold air intake system is designed for quick installation, typically completed in less than 90 minutes. It is not CARB approved, so check local regulations before installation. Backed by the AEM Lifetime Limited Warranty, this system offers long-term value and reliable performance. Improve your Subaru WRX STI’s power output and throttle response with this high-quality, durable intake upgrade from AEM Induction.
Features:
- Oversized, washable synthetic DRYFLOW air filter for long-term performance and maintenance-free operation
- Mandrel-bent aluminum intake tube designed to maximize airflow and reduce restrictions
- Custom heat shield protects intake air from engine bay heat, ensuring cooler, denser air intake
- Factory air duct attaches to heat shield for seamless integration
- Easy installation typically completed in under 90 minutes
- Built with high-quality hardware for secure fit and durability
- Designed to increase horsepower and torque for improved engine performance
- Not CARB approved, check local regulations before installation
To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.
Depending on the package, we ship using different carriers according to the item's location, content, and size.
Freight truck & international items, will require up to 7 business days to ship due to size and logistics.
All orders made after 3:00pm ET will be processed the next business day.
Unless otherwise noted as "In Stock" with qty amount. Pre-Orders, Special orders, & Made to order items have an estimate of 5+ weeks for USA made parts and 10+ weeks for JDM/ Overseas parts. Please check with us for exact ETA as it will vary by brand and item.
Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $200.
Delivery Inspection & Damage Claims
Large, oversized, fragile, and performance parts must be inspected immediately upon delivery and before installation. Damage, missing parts, incorrect items, or cosmetic concerns must be reported within 3 business days of delivery with photos of the product, outer box, inner packaging, and shipping label.
Please keep all packaging until the item has been fully inspected. Claims may be denied if the item has been installed, mounted, modified, test-fitted, used, reported late, or if the packaging has been discarded.
All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs. Refusal to pay duties/taxes fees prior to delivery will have the product sent back to us. This will be treated a standard return and all fees including original and refusal shipping fees will be deducted from original amount.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.
Processing and logistics on in stock international orders will take up to 7 business days to process & ship as sometimes we only have 1 international pickup a week.
In stock, non pre-orders or special order items can be returned within 30 days of the product arriving to your house or place of work.
30 days, unused. Refund = item price minus 20% restocking fee. Original shipping is non-refundable. Return shipping (if we provide label) is also deducted.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Pre-Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail
Any loan orders will have a 10% cancelation fee to cover the loan processing fees or 3rd party merchant fees. No fee will be incurred if used as store credit.
For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.
WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle.
AEM Induction 21-21 Subaru WRX STI 2.5L H4 Cold Air Intake System
