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75" to 3" fitment
The COBB Tuning Flex Fuel Sensor is required to complete the flex fuel setup and is sold separately
they provide an extra safety margin by preventing air pocket cavitation at the water pump
the arm can shift at its inner pivot under cornering loads
Middle is the standard starting point
IAG Performance V4 Air Oil Separator AOS - Red - 2004-2007 Subaru STI / 2006-2007 WRX PDM_valve-springs 75" to 3" fitmentIAG V4 Air Oil Separator AOS Red 2004 2007 Subaru STI 2006 2007 WRX Keep Oil Out of Your Intake The IAG V4 Air Oil Separator (AOS) is designed to protect and improve the performance of your 2006 2007 Subaru WRX or 2004 2007 STI by intercepting crankcase blow by oil before it reaches the intake tract. Developed after years of testing on both street and competition applications, the IAG AOS uses a 1 liter cast aluminum swirl pot canister to dramatically
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