Injen RD-Series Cold Air Intake Subaru STi 04, WRX 02-05


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Polished; CARB Approved for 02-04 Models Only

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Injen's Race Division (RD) series intake systems are cold air intake systems for the enthusiast craving midrange power. The intake tube is strategically placed behind the front bumper to acquire colder, denser air. Although most of the RD-series intake systems are one-piece designs, several are two-piece designs due to mass airflow meters. Every RD system is certified or pending by the California Air Resource Board, and is backed by Injen Technology's limited lifetime warranty.

Installation Guides and Links

Installation Guide
Describes how to install cold air intake on Subaru STi 04, WRX 02-05



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Injen RD-Series Cold Air Intake
Polished; CARB Approved for 02-04 Models Only
Subaru STi 04, WRX 02-05
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