AEM Induction Cold Air Intake System (Wrinkle Red) — Fits 2019-2021 Subaru WRX STI 2.5L

SKU: AEM21-863WR
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Sale price$375.56
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About AEM Induction

AEM Induction engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full AEM Induction lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Boost Performance & Style with the AEM Induction Wrinkle Red Cold Air Intake for your Subaru WRX STI (2019-2021)

Elevate your 2019-2021 Subaru WRX STI 2.5L with the striking AEM Induction 21-863WR Cold Air Intake system, featuring a vibrant Wrinkle Red finish. This performance-enhancing intake is engineered to deliver significant horsepower and torque gains by replacing your restrictive factory air filter and intake housing. Dyno-tested and tuned for your specific WRX STI, it ensures optimal performance and a visually stunning engine bay.

Key Features & Benefits:

  • Increased Horsepower & Torque: Experience a noticeable surge in power and improved throttle response.
  • Vibrant Wrinkle Red Finish: Adds a custom, aggressive look to your engine bay, setting your WRX STI apart.
  • Oversized AEM Dryflow Filter: Utilizes a washable synthetic air filter for superior airflow, excellent filtration, and long service intervals (up to 100,000 miles).
  • Mandrel-Bent Aluminum Tube: Constructed from high-quality aluminum with smooth, mandrel bends to optimize airflow.
  • Effective Heat Shield: Includes a custom heat shield to block hot engine bay air, ensuring cooler, denser air enters the engine for maximum power.
  • Factory Integration: Designed to connect with your vehicle's factory fresh air duct for efficient air delivery.
  • Simplified Installation: Typically installs in under 90 minutes, offering a quick and effective performance upgrade.

This AEM Cold Air Intake is the ideal choice for WRX STI owners who demand both enhanced performance and a unique aesthetic. Make your 2019, 2020, or 2021 Subaru WRX STI stand out and perform better with this premium, stylish intake from GGCRACING. This system is CARB EO D-670-25 compliant.

Vehicle Fitment

Years Make Model Trim
2019 Subaru WRX STI S209
2019-2021 Subaru WRX STI Base
2019-2021 Subaru WRX STI Limited

Product Details

Product Description
Part Numbers
Sizing & Fit

About AEM Induction

AEM Induction engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full AEM Induction lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Boost Performance & Style with the AEM Induction Wrinkle Red Cold Air Intake for your Subaru WRX STI (2019-2021)

Elevate your 2019-2021 Subaru WRX STI 2.5L with the striking AEM Induction 21-863WR Cold Air Intake system, featuring a vibrant Wrinkle Red finish. This performance-enhancing intake is engineered to deliver significant horsepower and torque gains by replacing your restrictive factory air filter and intake housing. Dyno-tested and tuned for your specific WRX STI, it ensures optimal performance and a visually stunning engine bay.

Key Features & Benefits:

  • Increased Horsepower & Torque: Experience a noticeable surge in power and improved throttle response.
  • Vibrant Wrinkle Red Finish: Adds a custom, aggressive look to your engine bay, setting your WRX STI apart.
  • Oversized AEM Dryflow Filter: Utilizes a washable synthetic air filter for superior airflow, excellent filtration, and long service intervals (up to 100,000 miles).
  • Mandrel-Bent Aluminum Tube: Constructed from high-quality aluminum with smooth, mandrel bends to optimize airflow.
  • Effective Heat Shield: Includes a custom heat shield to block hot engine bay air, ensuring cooler, denser air enters the engine for maximum power.
  • Factory Integration: Designed to connect with your vehicle's factory fresh air duct for efficient air delivery.
  • Simplified Installation: Typically installs in under 90 minutes, offering a quick and effective performance upgrade.

This AEM Cold Air Intake is the ideal choice for WRX STI owners who demand both enhanced performance and a unique aesthetic. Make your 2019, 2020, or 2021 Subaru WRX STI stand out and perform better with this premium, stylish intake from GGCRACING. This system is CARB EO D-670-25 compliant.

Vehicle Fitment

Years Make Model Trim
2019 Subaru WRX STI S209
2019-2021 Subaru WRX STI Base
2019-2021 Subaru WRX STI Limited

Product Details

Product Description

About AEM Induction

AEM Induction engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full AEM Induction lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Boost Performance & Style with the AEM Induction Wrinkle Red Cold Air Intake for your Subaru WRX STI (2019-2021)

Elevate your 2019-2021 Subaru WRX STI 2.5L with the striking AEM Induction 21-863WR Cold Air Intake system, featuring a vibrant Wrinkle Red finish. This performance-enhancing intake is engineered to deliver significant horsepower and torque gains by replacing your restrictive factory air filter and intake housing. Dyno-tested and tuned for your specific WRX STI, it ensures optimal performance and a visually stunning engine bay.

Key Features & Benefits:

  • Increased Horsepower & Torque: Experience a noticeable surge in power and improved throttle response.
  • Vibrant Wrinkle Red Finish: Adds a custom, aggressive look to your engine bay, setting your WRX STI apart.
  • Oversized AEM Dryflow Filter: Utilizes a washable synthetic air filter for superior airflow, excellent filtration, and long service intervals (up to 100,000 miles).
  • Mandrel-Bent Aluminum Tube: Constructed from high-quality aluminum with smooth, mandrel bends to optimize airflow.
  • Effective Heat Shield: Includes a custom heat shield to block hot engine bay air, ensuring cooler, denser air enters the engine for maximum power.
  • Factory Integration: Designed to connect with your vehicle's factory fresh air duct for efficient air delivery.
  • Simplified Installation: Typically installs in under 90 minutes, offering a quick and effective performance upgrade.

This AEM Cold Air Intake is the ideal choice for WRX STI owners who demand both enhanced performance and a unique aesthetic. Make your 2019, 2020, or 2021 Subaru WRX STI stand out and perform better with this premium, stylish intake from GGCRACING. This system is CARB EO D-670-25 compliant.

Vehicle Fitment

Years Make Model Trim
2019 Subaru WRX STI S209
2019-2021 Subaru WRX STI Base
2019-2021 Subaru WRX STI Limited

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