What kind of horsepower gains can I expect with this Injen intake?

Injen's dyno testing shows that this RD Series cold air intake can add up to 24.4 horsepower and 24 lb-ft of torque to your 2002-2007 Subaru Impreza WRX or STI.

Does this intake require a tune for my Subaru?

This Injen intake is designed to maintain safe air-fuel ratios and typically does not require an immediate tune. However, for optimal performance and to take full advantage of the increased airflow, consulting with a professional tuner is always recommended.

How do I maintain the Injen SuperNano-Web air filter?

The Injen SuperNano-Web air filter is fully serviceable. You can clean and reuse it, and Injen offers replacement filters (part number X-1013-BB) and optional Hydroshields (part number 1033BLK or 1033RED) for added protection.

Injen 02-07 WRX (No Wagon) / 04 STi Polished Cold Air Intake

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Specifications

Brand: Injen
Part #: RD1200P
UPC: 843115005023

Injen 02-07 WRX (No Wagon) / 04 STi Polished Cold Air Intake

Name: Injen 02-07 WRX (No Wagon) / 04 STi Polished Cold Air Intake
Brand: Injen
Price: 401.20 USD
Availability: InStock

$401.20

Only 4 left in stock

Fits 2002-2007 Subaru Impreza WRX and STI. This Injen cold air intake adds up to 24 HP with an aggressive engine tone.

Key Features

Fits 2002-2007 Subaru Impreza WRX and 2004 Subaru Impreza STI (excluding wagon models).
Smooth, mandrel-bent 6061-T6 aluminum intake tubing improves airflow.
Dyno-proven horsepower gains of up to 24.4 HP and 24 lb-ft of torque.
Maintains safe air-fuel ratios without requiring an immediate tune.
Includes a fully serviceable Injen SuperNano-Web dry air filter for better filtration.
Produces an aggressive and throaty engine tone under acceleration.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Subaru Impreza 2002-2007

Product Details

If you're looking to get more power and a better sound out of your 2002-2007 Subaru Impreza WRX or STI, this Injen RD Series cold air intake is a solid choice. It's designed to pull cooler, denser air from behind the front bumper, which helps your engine breathe easier and make more power. You can expect an aggressive, throaty engine tone when you step on the gas, and the polished aluminum tubing looks sharp under the hood.

The heart of this system is the smooth, mandrel-bent 6061-T6 aluminum tubing. This design eliminates restrictions that the factory intake might have, allowing for a smoother, more efficient path for air entering the engine. Injen has also made sure that this intake maintains safe air-fuel ratios, so you don't have to worry about needing an extra tune right away, though it's always a good idea to check with a professional. It comes with a fully serviceable Injen SuperNano-Web dry air filter that offers increased surface area for better airflow and filtration.

This kit includes everything you need for installation, including the tubing, filter, and hardware. It's a direct bolt-on upgrade that can add a notable amount of horsepower and torque, as shown on Injen's dyno tests. Plus, it's backed by Injen's limited lifetime warranty, giving you peace of mind.