AEM 2018 Subaru WRX STI 2.5L Cold Air Intake System - Wrinkle Red

SKU: AEM21-836WR
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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

Aggressive Performance for Your Subaru WRX STI: AEM Cold Air Intake

Unleash the full potential of your 2018 Subaru WRX STI 2.5L with the AEM 21-836WR Performance Cold Air Intake System. Engineered to replace your restrictive factory air intake, this system allows your engine to breathe significantly more air, leading to substantial gains in horsepower and torque. Experience a more aggressive throttle response and an enhanced engine note that complements its performance capabilities.

Engineered for Power and Style

This AEM intake system features an oversized Dryflow synthetic air filter, known for its exceptional airflow, filtration efficiency, and durability. The filter is strategically placed within the original air box space and protected by a custom heat shield designed to minimize the intake of hot air from the engine bay, crucial for maximizing power gains. The intake tubing is constructed from high-quality, mandrel-bent aluminum, ensuring a smooth path for air, and is finished in a striking wrinkle red powder coat for a bold, race-inspired look under the hood. This system is designed to work with the vehicle's factory emissions control devices.

Key Features & Benefits:

  • Direct fit for 2018 Subaru WRX STI 2.5L models
  • Significant increases in horsepower and torque
  • Features AEM's high-flow, oil-free Dryflow air filter
  • Mandrel-bent aluminum tubing for optimized airflow
  • Aggressive wrinkle red powder coat finish
  • Includes heat shield to reduce intake air temperature
  • CARB EO# D-670-25
  • Backed by AEM's Lifetime Limited Warranty

Note: Always verify local emissions compliance for aftermarket parts.

Give your Subaru WRX STI the performance upgrade it deserves. Get the AEM 21-836WR Cold Air Intake from GGCRACING today!

Vehicle Fitment

Years Make Model Trim
2018 Subaru WRX STI Base
2018 Subaru WRX STI Limited
2018 Subaru WRX STI Type RA

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

Aggressive Performance for Your Subaru WRX STI: AEM Cold Air Intake

Unleash the full potential of your 2018 Subaru WRX STI 2.5L with the AEM 21-836WR Performance Cold Air Intake System. Engineered to replace your restrictive factory air intake, this system allows your engine to breathe significantly more air, leading to substantial gains in horsepower and torque. Experience a more aggressive throttle response and an enhanced engine note that complements its performance capabilities.

Engineered for Power and Style

This AEM intake system features an oversized Dryflow synthetic air filter, known for its exceptional airflow, filtration efficiency, and durability. The filter is strategically placed within the original air box space and protected by a custom heat shield designed to minimize the intake of hot air from the engine bay, crucial for maximizing power gains. The intake tubing is constructed from high-quality, mandrel-bent aluminum, ensuring a smooth path for air, and is finished in a striking wrinkle red powder coat for a bold, race-inspired look under the hood. This system is designed to work with the vehicle's factory emissions control devices.

Key Features & Benefits:

  • Direct fit for 2018 Subaru WRX STI 2.5L models
  • Significant increases in horsepower and torque
  • Features AEM's high-flow, oil-free Dryflow air filter
  • Mandrel-bent aluminum tubing for optimized airflow
  • Aggressive wrinkle red powder coat finish
  • Includes heat shield to reduce intake air temperature
  • CARB EO# D-670-25
  • Backed by AEM's Lifetime Limited Warranty

Note: Always verify local emissions compliance for aftermarket parts.

Give your Subaru WRX STI the performance upgrade it deserves. Get the AEM 21-836WR Cold Air Intake from GGCRACING today!

Vehicle Fitment

Years Make Model Trim
2018 Subaru WRX STI Base
2018 Subaru WRX STI Limited
2018 Subaru WRX STI Type RA

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

Aggressive Performance for Your Subaru WRX STI: AEM Cold Air Intake

Unleash the full potential of your 2018 Subaru WRX STI 2.5L with the AEM 21-836WR Performance Cold Air Intake System. Engineered to replace your restrictive factory air intake, this system allows your engine to breathe significantly more air, leading to substantial gains in horsepower and torque. Experience a more aggressive throttle response and an enhanced engine note that complements its performance capabilities.

Engineered for Power and Style

This AEM intake system features an oversized Dryflow synthetic air filter, known for its exceptional airflow, filtration efficiency, and durability. The filter is strategically placed within the original air box space and protected by a custom heat shield designed to minimize the intake of hot air from the engine bay, crucial for maximizing power gains. The intake tubing is constructed from high-quality, mandrel-bent aluminum, ensuring a smooth path for air, and is finished in a striking wrinkle red powder coat for a bold, race-inspired look under the hood. This system is designed to work with the vehicle's factory emissions control devices.

Key Features & Benefits:

  • Direct fit for 2018 Subaru WRX STI 2.5L models
  • Significant increases in horsepower and torque
  • Features AEM's high-flow, oil-free Dryflow air filter
  • Mandrel-bent aluminum tubing for optimized airflow
  • Aggressive wrinkle red powder coat finish
  • Includes heat shield to reduce intake air temperature
  • CARB EO# D-670-25
  • Backed by AEM's Lifetime Limited Warranty

Note: Always verify local emissions compliance for aftermarket parts.

Give your Subaru WRX STI the performance upgrade it deserves. Get the AEM 21-836WR Cold Air Intake from GGCRACING today!

Vehicle Fitment

Years Make Model Trim
2018 Subaru WRX STI Base
2018 Subaru WRX STI Limited
2018 Subaru WRX STI Type RA

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