GFB 02-07 WRX / 04-10 STI TMS Respons Blow Off - T9003

• About Product
• Additional Details
• About the Brand
• Vehicle Fitment
• Product Videos

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!?.

This part fits:Subaru WRX MY01-07, STi MY02-on, XT Forester MY05-08

Patented Venting Bias Adjustment Sysem-Can be Infinitely Adjusted between Full Recirc (silent) and full atmosphere (loud). Change the venting bias simply by twisting the adjustment ring.. GFB 02-07 WRX / 04-10 STI TMS Respons Blow Off Valve Kit. Fully Adjustable sound BOV/Diverter. Turbocharger Blow Off Valve. GFB BOV/Diverter Valve. BOV/Diverter Valve

Forced induction components mainly consist of supercharger or turbocharger parts that are used to make significant power gains on your vehicle. If you are looking for a significant increase in horsepower, look no further than forced induction.

Blow off valves are designed to relieve the boost pressure from your intercooler piping when you let your foot off the gas. Doing so, the blow off valve protects your turbo from early wear and tear. Aftermarket blow off valves allow for proper pressure relief and often make cool sounds.

NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.

Warning: This product listing contains generic images

WARNING: Cancer & Reproductive Harm. For more information, go to www.P65Warnings.ca.gov

Installation Instructions

1. Click to Download

From the very beginning of my career, I’ve learnt that it’s amazing where tinkering can take you. I’ve been engineering for 35 years, including 10 years manufacturing components for the automotive market including Original Equipment Manufacturers (OEM). I’ve been determined to push the limits of high performance engines since I was tinkering with my Mini Cooper S in the ‘80s. When I bought my WRX in 1997, I decided to step it up a knotch and get serious. At first, I bought components ‘off the shelf’. Most of these were expensive and imported. Indeed, this was true for the Australian-made ones too. Nothing, however, came even close to the quality I knew they should be, as they were made of inferior materials and of generally poor workmanship, and did not give me the performance gains I was looking for. So I started designing, testing and developing “GO FAST BITS”, a range of innovative and high-quality blow-off valves, boost controllers, pulley kits and short shifters. These products, unlike what was previously available, were meticulously designed and manufactured from the highest grade materials, working the way they were designed to. Performance should not be about compromise – parts should fit correctly and deliver real performance outcomes, without making the car difficult to live with on a daily basis. GFB now has three qualified engineers (mechanical and mechatronic), and a team of dedicated enthusistic & passionate individuals who make the GFB name what it is today. “GO FAST BITS” products are Proudly Australian, made in accordance with the ISO 9001 quality management system. Constantly we’re developing new, and innovative products. Keep an eye on the website for the latest of GFB’s innovations.

• 2001 Subaru Impreza L
• 2001 Subaru Impreza RS
• 2002 Subaru Impreza RS
• 2003 Subaru Impreza RS
• 2002 Subaru Impreza TS
• 2003 Subaru Impreza TS
• 2002 Subaru Impreza WRX
• 2003 Subaru Impreza WRX
• 2001 Subaru Impreza Outback
• 2002 Subaru Impreza Outback
• 2003 Subaru Impreza Outback
• 2004 Subaru Impreza Outback
• 2004 Subaru Impreza RS
• 2004 Subaru Impreza TS
• 2004 Subaru Impreza WRX
• 2004 Subaru Forester XT
• 2004 Subaru Impreza WRX STI ( door , HP Cylinder L, speed )
• 2005 Subaru Forester XT
• 2005 Subaru Forester XT Premium
• 2005 Subaru Impreza RS
• 2005 Subaru Impreza WRX
• 2005 Subaru Impreza WRX STI ( door , HP Cylinder L, speed )
• 2006 Subaru Forester XT Limited
• 2006 Subaru Impreza WRX
• 2006 Subaru Impreza WRX STI ( door , HP Cylinder L, speed )
• 2007 Subaru Forester XT Limited
• 2007 Subaru Impreza WRX STI Limited ( door , HP Cylinder L, speed )
• 2005 Subaru Impreza Outback Sport
• 2007 Subaru Impreza WRX
• 2007 Subaru Impreza WRX STI ( door , HP Cylinder L, speed )
• 2007 Subaru Impreza WRX TR ( door , HP Cylinder L, speed )
• 2008 Subaru Forester XT Limited
• 2008 Subaru Forester Sports 2.5 XT
• 2006 Subaru Impreza WRX TR ( door , HP Cylinder L, speed )
• 2006 Subaru Impreza WRX Limited
• 2007 Subaru Impreza WRX Limited
• 2008 Subaru Impreza WRX STI ( door , HP Cylinder L, speed )
• 2009 Subaru Impreza WRX STI ( door , HP Cylinder L, speed )
• 2010 Subaru Impreza WRX STI ( door , HP Cylinder L, speed )
• 2011 Subaru Impreza WRX STI
• 2010 Subaru Impreza WRX STI Special Edition ( door , HP Cylinder L, speed )
• 2011 Subaru Impreza WRX STI Limited ( door , HP Cylinder L, speed )
• 2012 Subaru Impreza WRX STI
• 2012 Subaru Impreza WRX STI Limited ( door , HP Cylinder L, speed )
• 2013 Subaru Impreza WRX STI
• 2013 Subaru Impreza WRX STI Limited ( door , HP Cylinder L, speed )
• 2014 Subaru Impreza WRX STI
• 2014 Subaru Impreza WRX STI Limited ( door , HP Cylinder L, speed )
• 2015 Subaru WRX STI Base ( door , HP Cylinder L, speed )
• 2015 Subaru WRX STI Limited ( door , HP Cylinder L, speed )
• 2015 Subaru WRX STI Launch Edition ( door , HP Cylinder L, speed )
• 2016 Subaru WRX STI Base ( door , HP Cylinder L, speed )
• 2016 Subaru WRX STI Limited ( door , HP Cylinder L, speed )
• 2016 Subaru WRX STI Series.HyperBlue ( door , HP Cylinder L, speed )
• 2017 Subaru WRX STI Base
• 2017 Subaru WRX STI Limited
• 2018 Subaru WRX STI Base ( door , HP Cylinder L, speed )
• 2018 Subaru WRX STI Limited ( door , HP Cylinder L, speed )
• 2018 Subaru WRX STI Type RA ( door , HP Cylinder L, speed )
• 2019 Subaru WRX STI Base ( door , HP Cylinder L, speed )
• 2019 Subaru WRX STI Limited ( door , HP Cylinder L, speed )
• 2019 Subaru WRX STI S209
• 2020 Subaru WRX STI Base
• 2020 Subaru WRX STI Limited