GFB 02-07 WRX / 04-10 STI TMS Respons Blow Off Valve Kit

If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with the issues. Like all GFB valves, the Respons utilises GFB's proven TMS Technology to ensure rapid boost recovery on gearshift and optimum throttle response, as well as the ability to withstand boost pressures of 100 psi plus. Put simply, it can hold more boost than any turbo could produce.This Part Fits: Year Make Model Submodel 2008 Subaru Forester Sports 2.5 XT 2004-2005 Subaru Forester XT 2006-2008 Subaru Forester XT Limited 2005 Subaru Forester XT Premium 2001 Subaru Impreza L 2001-2004 Subaru Impreza Outback 2005 Subaru Impreza Outback Sport 2001-2005 Subaru Impreza RS 2002-2004 Subaru Impreza TS 2002-2007 Subaru Impreza WRX 2006-2007 Subaru Impreza WRX Limited 2004-2014 Subaru Impreza WRX STI 2007,2011-2014 Subaru Impreza WRX STI Limited 2010 Subaru Impreza WRX STI Special Edition 2006-2007 Subaru Impreza WRX TR 2015-2020 Subaru WRX STI Base 2015 Subaru WRX STI Launch Edition 2015-2020 Subaru WRX STI Limited 2016 Subaru WRX STI Series.HyperBlue