This Cobb intake and airbox combo is designed for 2004 - 2007 Subaru STI, 2002 - 2007 Subaru WRX, and 2004 - 2008 Subaru Forester XT. It sets the standard for MAF - style intakes. With a velocity stack, airflow straighteners, and a composite body, it offers ultimate performance. You can use the Subaru factory snorkel to feed cold air to the SF Intake. The SF Airbox turns the SF Intake into a cold - air intake with OEM looks and fit. Key features include a composite intake body for heat rejection, a pre - oiled filter, an integrated velocity stack, integrated airflow straighteners, 16 - gauge aluminum construction, C.A.R.B. certification, intermediate installation effort, an installation guide, and no tuning required. This system combines the benefits of short - ram and cold - air intakes without the drawbacks. It uses unique features to maintain optimal flow and minimize turbulence that can cause engine management issues. The custom conical cloth air - filter element, along with a CFD - designed velocity stack and air - flow straightener grid, ensures precise air - flow readings. The one - piece high - temperature plastic composite design not only saves weight but also offers better heat - rejection properties. The SF Air Box adds cold - air intake benefits and prevents hot engine - bay air from entering the intake system. It also separates rainwater from the intake air, avoiding water - ingestion problems.
Using your Cobb intake and airbox is straightforward. First, follow the included installation guide to set it up in your 2002 - 2008 Subaru STI, WRX, or Forester XT. The process requires an intermediate level of effort, but you don't need to tune your engine. Once installed, the system will work on its own to provide better air intake performance. When it comes to maintenance, regularly check the pre - oiled filter. If it gets dirty, clean it according to the manufacturer's instructions. Keep an eye on the composite intake body and the aluminum parts for any signs of damage. Also, make sure the connections between the intake, airbox, and the Subaru factory snorkel are secure. Avoid driving through deep water as it could cause water ingestion issues, even though the airbox is designed to separate rainwater. If you notice any unusual engine noises or performance changes, check the system for any problems right away.
