# 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 100psi+. Put simply, it can hold more boost than any turbo could produce.

-   Patented Venting Bias Adjustment
    
    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
    
    2019
    
    Subaru
    
    WRX STI
    
    S209
    
    2016
    
    Subaru
    
    WRX STI
    
    Series.HyperBlue
    
    2018
    
    Subaru
    
    WRX STI
    
    Type RA

## Details

- **Price:** 465.5 CAD
- **Vendor:** Go Fast Bits
- **Type:** Blow Off Valves

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 465.50 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/gfb-02-07-wrx-04-10-sti-tms-respons-blow-off-valve-kit)
> Updated: 2026-06-28