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  • AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C
AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C
AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C
AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C
AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C
AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C
AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C
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AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C

Air Intake Systems Cold Air Intakes
AEM Induction
aem21-836C
In stock
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$299.99
AEM cold air intake systems are designed to increase horsepower and torque. The system includes an oversized AEM DRYFLOW synthetic washable air filter, engineered to provide outstanding airflow, filtration, and performance, and also features a mandrel-bent aluminum intake tube and high quality hardware. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the factory fresh air duct attaches to the heat shield. The entire system can typically be installed in less than 90 minutes. Associated products: AEM-1-1000 Air Filter Cleaner Features & BenefitsUtilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters. Downloads & Resources Installation Instructions (PDF) User 1 (PDF) User 8 (WEBM)
AEM 19-21 BMW 330i L4-2.0L F/I Cold Air Intake - 21-879C
AEM 19-21 BMW 330i L4-2.0L F/I Cold Air Intake - 21-879C
$369.99 $360.54
AEM 19-21 Nissan Altima L4 2.5L F/I Cold Air Intake System - 21-878DS
AEM 19-21 Nissan Altima L4 2.5L F/I Cold Air Intake System - 21-878DS
$317.99 $315.90
AEM 2018 C.A.S Subaru Impreza WRX/STI H4-2.5L F/I Cold Air Intake - 21-836C
SKU: aem21-836C
Product Details

Everything You Need To Know

Review product information, shipping and returns, and price-match details before you order.

Product Info

AEM cold air intake systems are designed to increase horsepower and torque. The system includes an oversized AEM DRYFLOW synthetic washable air filter, engineered to provide outstanding airflow, filtration, and performance, and also features a mandrel-bent aluminum intake tube and high quality hardware. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the factory fresh air duct attaches to the heat shield. The entire system can typically be installed in less than 90 minutes.

Associated products: AEM-1-1000 Air Filter Cleaner

Features & Benefits

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

Downloads & Resources

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Shipping on new purchases

In Stock Items:
In stock items typically ship within 1-3 business days. Most items arrive within 2 business days, but there are situations where it may take up to 5 business days.

Special Order Items:
Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

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