Injen RD Series Polished Cold Air Intake — Fits 02-07 Subaru WRX, 04 Subaru STi

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SKU: INJRD1200P
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About Injen Injen Technology has been engineering performance intakes for ...Read More

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Sale price$318.99 Regular price$381.14
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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 Injen

Injen Technology has been engineering performance intakes for over 25 years — known for tunable air-fuel ratios via the patented MR Technology and SuperNano-Web filtration. Every Injen intake is dyno-tested for guaranteed HP and torque gains.

Watch in action

Maximize Your Subaru WRX/STi's Performance with the Injen RD Series Polished Cold Air Intake

Unlock the hidden potential of your Subaru WRX or STi with the Injen RD Series Polished Cold Air Intake. This performance-driven system is engineered to deliver significant gains in horsepower and torque by optimizing the flow of cool, dense air into your engine. The stunning polished finish adds a custom look to your engine bay, complementing the enhanced performance.

Key Features and Advantages:

  • Enhanced Power Output: Experience a noticeable increase in horsepower and torque for improved acceleration and responsiveness.
  • Superior Airflow: Features a mandrel-bent 6061-T6 aluminum intake tube designed for smooth, unrestricted airflow.
  • Aggressive Engine Sound: Enjoy a more pronounced and sporty engine note during acceleration.
  • High-Performance Air Filter: Equipped with a serviceable Injen SuperWeb filter that effectively captures debris while maximizing airflow.
  • Vehicle-Specific Design: Engineered for a precise fit on 2002-2007 Subaru WRX models (excluding wagons) and 2004 Subaru STi.
  • CARB Compliant: This intake system is CARB EO# D-476-5 compliant, meeting emissions requirements in California and other regulated states.

The Injen RD Series intake system is designed to draw in the coldest, densest air available from the engine bay, which is crucial for optimal combustion and power production. By reducing intake air temperatures and minimizing air restriction, this system allows your engine to breathe more freely, resulting in tangible performance improvements. The polished aluminum tubing not only looks great but also ensures a smooth path for air, reducing turbulence and maximizing efficiency. This intake is engineered to maintain proper air-fuel ratios, ensuring engine safety and reliability alongside performance gains.

Upgrade your Subaru WRX or STi with the Injen RD Series Polished Cold Air Intake from GGCRACING and experience a new level of performance.

Vehicle Fitment

Years Make Model Trim
2002-2007 Subaru Impreza WRX
2004-2007 Subaru Impreza WRX STI
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR
2007 Subaru Impreza WRX STI Limited

Product Details

Product Description
Part Numbers
Sizing & Fit

About Injen

Injen Technology has been engineering performance intakes for over 25 years — known for tunable air-fuel ratios via the patented MR Technology and SuperNano-Web filtration. Every Injen intake is dyno-tested for guaranteed HP and torque gains.

Watch in action

Maximize Your Subaru WRX/STi's Performance with the Injen RD Series Polished Cold Air Intake

Unlock the hidden potential of your Subaru WRX or STi with the Injen RD Series Polished Cold Air Intake. This performance-driven system is engineered to deliver significant gains in horsepower and torque by optimizing the flow of cool, dense air into your engine. The stunning polished finish adds a custom look to your engine bay, complementing the enhanced performance.

Key Features and Advantages:

  • Enhanced Power Output: Experience a noticeable increase in horsepower and torque for improved acceleration and responsiveness.
  • Superior Airflow: Features a mandrel-bent 6061-T6 aluminum intake tube designed for smooth, unrestricted airflow.
  • Aggressive Engine Sound: Enjoy a more pronounced and sporty engine note during acceleration.
  • High-Performance Air Filter: Equipped with a serviceable Injen SuperWeb filter that effectively captures debris while maximizing airflow.
  • Vehicle-Specific Design: Engineered for a precise fit on 2002-2007 Subaru WRX models (excluding wagons) and 2004 Subaru STi.
  • CARB Compliant: This intake system is CARB EO# D-476-5 compliant, meeting emissions requirements in California and other regulated states.

The Injen RD Series intake system is designed to draw in the coldest, densest air available from the engine bay, which is crucial for optimal combustion and power production. By reducing intake air temperatures and minimizing air restriction, this system allows your engine to breathe more freely, resulting in tangible performance improvements. The polished aluminum tubing not only looks great but also ensures a smooth path for air, reducing turbulence and maximizing efficiency. This intake is engineered to maintain proper air-fuel ratios, ensuring engine safety and reliability alongside performance gains.

Upgrade your Subaru WRX or STi with the Injen RD Series Polished Cold Air Intake from GGCRACING and experience a new level of performance.

Vehicle Fitment

Years Make Model Trim
2002-2007 Subaru Impreza WRX
2004-2007 Subaru Impreza WRX STI
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR
2007 Subaru Impreza WRX STI Limited

Product Details

Product Description

About Injen

Injen Technology has been engineering performance intakes for over 25 years — known for tunable air-fuel ratios via the patented MR Technology and SuperNano-Web filtration. Every Injen intake is dyno-tested for guaranteed HP and torque gains.

Watch in action

Maximize Your Subaru WRX/STi's Performance with the Injen RD Series Polished Cold Air Intake

Unlock the hidden potential of your Subaru WRX or STi with the Injen RD Series Polished Cold Air Intake. This performance-driven system is engineered to deliver significant gains in horsepower and torque by optimizing the flow of cool, dense air into your engine. The stunning polished finish adds a custom look to your engine bay, complementing the enhanced performance.

Key Features and Advantages:

  • Enhanced Power Output: Experience a noticeable increase in horsepower and torque for improved acceleration and responsiveness.
  • Superior Airflow: Features a mandrel-bent 6061-T6 aluminum intake tube designed for smooth, unrestricted airflow.
  • Aggressive Engine Sound: Enjoy a more pronounced and sporty engine note during acceleration.
  • High-Performance Air Filter: Equipped with a serviceable Injen SuperWeb filter that effectively captures debris while maximizing airflow.
  • Vehicle-Specific Design: Engineered for a precise fit on 2002-2007 Subaru WRX models (excluding wagons) and 2004 Subaru STi.
  • CARB Compliant: This intake system is CARB EO# D-476-5 compliant, meeting emissions requirements in California and other regulated states.

The Injen RD Series intake system is designed to draw in the coldest, densest air available from the engine bay, which is crucial for optimal combustion and power production. By reducing intake air temperatures and minimizing air restriction, this system allows your engine to breathe more freely, resulting in tangible performance improvements. The polished aluminum tubing not only looks great but also ensures a smooth path for air, reducing turbulence and maximizing efficiency. This intake is engineered to maintain proper air-fuel ratios, ensuring engine safety and reliability alongside performance gains.

Upgrade your Subaru WRX or STi with the Injen RD Series Polished Cold Air Intake from GGCRACING and experience a new level of performance.

Vehicle Fitment

Years Make Model Trim
2002-2007 Subaru Impreza WRX
2004-2007 Subaru Impreza WRX STI
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR
2007 Subaru Impreza WRX STI Limited

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