# GFB 04-05 Miata / 93-98 Supra (w/ modification of factory hoses) 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
    
    2004-2005
    
    Mazda
    
    Miata
    
    Mazdaspeed
    
    1994-1995
    
    Subaru
    
    Impreza
    
    Base
    
    1996
    
    Subaru
    
    Impreza
    
    Brighton
    
    1994-1996
    
    Subaru
    
    Impreza
    
    L
    
    1994
    
    Subaru
    
    Impreza
    
    LS
    
    1995-1996
    
    Subaru
    
    Impreza
    
    LX
    
    1995-1996
    
    Subaru
    
    Impreza
    
    Outback
    
    1993-1998
    
    Toyota
    
    Supra
    
    Base
    
    1993-1998
    
    Toyota
    
    Supra
    
    Twin Turbo

## Details

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

## Variants

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

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/gfb-04-05-miata-93-98-supra-w-modification-of-factory-hoses-tms-respons-blow-off-valve-kit)
> Updated: 2026-06-28