DeatschWerks 40 Micron Fuel Filter Subaru WRX / STI 2004-2007 / Outback Sport / Forester 2004-2008 Vehicle Make_Dodge HKS notes that modifications to

HKS notes that modifications to the front bumper are required for installation and that this FMIC is not designed for street use

0XT-R is a bolt-on upgrade that requires a 3" inlet

six puck high torque sprung disc with ceramic buttons

This is important

DeatschWerks 40 Micron Fuel Filter Subaru WRX / STI 2004-2007 / Outback Sport / Forester 2004-2008 Vehicle Make_Dodge HKS notes that modifications toPart #: 8 05 01 040 Fuel pump module filter element, stainless steel 40 micron, for Subaru 04 07 WRX, STI, and Outback Sport. 04 08 Forester. *Note: Some model years can vary. Check engine bay for existence of OE in line filter, if one is present this product is not applicable.