The GFB Respons is an adjustable atmospheric/diverter valve kit for the 1.8T Audi, Volkswagen, Saab and related platforms. A patented venting-bias adjustment lets you dial in blow-off sound without the backfiring or stalling that fixed-ratio atmospheric valves can cause. It uses GFB's TMS technology for rapid boost recovery and sharp throttle response.
| Type | Adjustable atmospheric/diverter valve kit |
| Line | Respons TMS |
| Operation | Adjustable venting bias (atmospheric to recirculating) |
| Fitment | Audi / Volkswagen 1.8T (and Saab applications - see fitment) |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-2005 | Audi | A4 | Base |
| 2003-2006 | Audi | A4 | Cabriolet |
| 1999-2005 | Audi | A4 Quattro | Avant |
| 1997-2005 | Audi | A4 Quattro | Base |
| 2000-2006 | Audi | TT | Base |
| 2003 | Saab | 9-3 | Arc |
| 1999-2001 | Saab | 9-3 | Base |
| 2003 | Saab | 9-3 | Linear |
| 1999-2003 | Saab | 9-3 | SE |
| 2003 | Saab | 9-3 | Vector |
| 2000-2001,2006-2009 | Saab | 9-5 | 2.3t |
| 2000-2005,2008-2009 | Saab | 9-5 | Aero |
| 2004-2005 | Saab | 9-5 | Arc |
| 1999 | Saab | 9-5 | Base |
| 2000 | Saab | 9-5 | Gary Fisher |
| 2009 | Saab | 9-5 | Griffin |
| 2002-2005 | Saab | 9-5 | Linear |
| 1999 | Saab | 9-5 | SE |
| 1999-2003 | Volkswagen | Beetle | GL |
| 1999-2005 | Volkswagen | Beetle | GLS |
| 1999-2004 | Volkswagen | Beetle | GLX |
| 2001-2002 | Volkswagen | Beetle | Sport |
| 2002-2004 | Volkswagen | Beetle | Turbo S |
| 2000-2001 | Volkswagen | Golf | GLS |
| 2002-2006 | Volkswagen | Golf | GTI 1.8T |
| 2003 | Volkswagen | Golf | GTI 20th Anniversary |
| 2002 | Volkswagen | Golf | GTI 337 |
| 2000-2001 | Volkswagen | Golf | GTI GLS |
| 2003-2005 | Volkswagen | Jetta | GL |
| 2004-2005 | Volkswagen | Jetta | GLI |
| 2000-2005 | Volkswagen | Jetta | GLS |
| 2001,2003 | Volkswagen | Jetta | Wolfsburg Edition |
| 2003-2005 | Volkswagen | Passat | GL |
| 1998-2005 | Volkswagen | Passat | GLS |
| 2004-2005 | Volkswagen | Passat | GLS 4 Motion |
