K&N Advantage Air Filter Subaru Outback 03-10 / Legacy 05-10 / Impreza 07-10 / Forester 08-10 | KNA-2304 5500 GrimmSpeed 2008-2014 Subaru STI Front

GrimmSpeed 2008-2014 Subaru STI Front Mount Intercooler Kit Raw Core / Black Pipe

Exhaust tip diameter: 4

allowing efficient and secure valve spring service across multiple Subaru engines

the COBB Intake Tube enhances both performance and engine bay aesthetics

this system delivers increased airflow and reduced intake temperatures—without requiring any tuning

K&N Advantage Air Filter Subaru Outback 03-10 / Legacy 05-10 / Impreza 07-10 / Forester 08-10 | KNA-2304 5500 GrimmSpeed 2008-2014 Subaru STI FrontProduct Fitment: 2003 2010 Outback 2005 2010 Legacy 2007 2010 Impreza 2008 2010 Forester Premium replacement air filter that provides superior engine protection, longer life, and easy installation. Features: Durable construction for up to 18,000 miles of use 50% longer lifespan than standard filters Up to 99% filtration efficiency for engine protection Drop in installation, usually no tools required Replace every 18,000 miles under normal driving