GFB 08-10+ WRX / 05-09 LGT 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 100psi+. Put simply, it can hold more boost than any turbo could produce.
GFB’s Respons, allowing you to infinitely vary how much air is recirculated or vented to atmosphere. Simply by twisting the adjustment ring, you can change the sound of your BOV from silent to ear-shattering!?.
Subaru WRX MY08-on, GT Legacy MY03-09, XT Forester MY09-12

Fitment:
Subaru Forester Sports 2.5 XT 2008
Subaru Forester XT 2009
Subaru Forester XT Limited 2008 to 2010
Subaru Forester XT Premium 2010 to 2013
Subaru Forester XT Touring 2011 to 2013
Subaru Impreza 2.5 GT 2009 to 2010
Subaru Impreza WRX 2008 to 2014
Subaru Impreza WRX Limited 2010 to 2014
Subaru Impreza WRX Premium 2009 to 2014
Subaru Legacy 2.5i 2006 to 2009
Subaru Legacy 2.5i Limited 2007 to 2009
Subaru Legacy 2.5i Special Edition 2007 to 2009
Subaru Legacy 3.0 R 2009
Subaru Legacy 3.0 R Limited 2008 to 2009
Subaru Legacy GT 2003 to 2006
Subaru Legacy GT Limited 2005
Subaru Legacy GT Limited 2007 to 2009
Subaru Legacy GT spec.B 2006 to 2009
Subaru Legacy i 2005
Subaru Legacy L 2003 to 2004
Subaru Legacy L 35th Anniversary 2004
Subaru Legacy L SE 2003