AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
AEM Induction

AEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red

$349.99 In Stock Sold out

1-4 DAYS DELIVERY

100% ORIGINAL AND QUALITY

24 MONTHS GUARANTEE

  • Description
  • Fitment
  • Return Policy
  • Reviews
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.
Installation Instructions
Installation Instructions
Technical Drawing


This Part Fits:

Year Make Model Submodel
2018 Subaru WRX STI Base
2018 Subaru WRX STI Limited
2018 Subaru WRX STI Type RA

1. Returns

No Refunds/Exchanges:

We do not accept returns or exchanges unless the item you purchased is defective. If you receive a defective item, please contact us at [•] with details of the product and the defect. You can send the item you consider defective to:

Upon receipt of the returned product, we will fully examine it and notify you via e-mail, within a reasonable period of time, whether you are entitled to a refund or a replacement as a result of the defect. If you are entitled to a replacement or refund, we will replace the product or refund the purchase price, using the original method of payment.

2. Shipping

To return the item you purchased, please mail it to:

Refunds do not include any shipping and handling charges shown on the packaging slip or invoice. Shipping charges for all returns must be prepaid and insured by you. You are responsible for any loss or damage to hardware during shipment. We do not guarantee that we will receive your returned item. Shipping and handling charges are not refundable. Any amounts refunded will not include the cost of shipping.

Recently Viewed