Turbo XS 08-12 WRX Racing Bypass Valve BOV Bearings you've noticed a curved "bellmouth"

you've noticed a curved "bellmouth" profile at the inlet of each intake runner

Threads into the back of the B-Series VTEC head on the back passenger side allows oil to be passed from the block sandwich plate to the head

Year Make Model Submodel 2013-2016 Scion FR-S Base 2013-2019 Subaru BRZ Limited 2013-2019 Subaru BRZ Premium 2015 Subaru BRZ Series

HKS 01-03 Lexus IS300 3

Turbo XS 08-12 WRX Racing Bypass Valve BOV Bearings you've noticed a curved "bellmouth"Turbo XS 08 12 WRX Racing Bypass Valve BOV This Part Fits: Year Make Model Submodel 2008 2014 Subaru Impreza WRX 2010 2014 Subaru Impreza WRX Limited 2009 2014 Subaru Impreza WRX Premium 2008 2014 Subaru Impreza WRX STI 2011 2014 Subaru Impreza WRX STI Limited 2010 Subaru Impreza WRX STI Special Edition