Go Fast Bits

Go Fast Bits Hybrid TMS Dual Port 20mm Blow Off Valve — Fits 97-05 VW/Audi 1.8T

Go Fast Bits Hybrid TMS Dual Port 20mm Blow Off Valve — Fits 97-05 VW/Audi 1.8T
Go Fast Bits Hybrid TMS Dual Port 20mm Blow Off Valve — Fits 97-05 VW/Audi 1.8T
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Go Fast Bits Hybrid TMS Dual Port 20mm Blow Off Valve — Fits 97-05 VW/Audi 1.8TGo Fast Bits Hybrid TMS Dual Port 20mm Blow Off Valve — Fits 97-05 VW/Audi 1.8T
Go Fast Bits

Go Fast Bits Hybrid TMS Dual Port 20mm Blow Off Valve — Fits 97-05 VW/Audi 1.8T

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SKU: GFBT9225
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches
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Product Details

Product Description
Part Numbers
Sizing & Fit

About Go Fast Bits

Go Fast Bits engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Go Fast Bits lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Classic 1.8T Performance with GFB Hybrid TMS

The legendary 1.8T engine remains a favorite for tuners, and the GFB Hybrid TMS 20mm Blow Off Valve is the perfect way to modernize your turbo system. Featuring a 20mm inlet and outlet, this valve is a direct replacement for the aging factory diverter valves found in many 90s and early 2000s European vehicles. It utilizes GFB's proven dual-port design to provide both recirculation for engine health and atmospheric venting for that classic turbo sound.

Why Upgrade?

  • Precision Fitment: Designed specifically for 20mm hose configurations.
  • Staged Venting: Recirculates air at low lift to prevent stalling or rich running, while venting at high boost for sound.
  • Reliability: Replaces fragile factory plastic valves that are prone to cracking and leaking.
  • Improved Boost Recovery: Faster valve response keeps your turbo spooled between shifts.

Vehicle Compatibility

  • 1997-2005 Audi A4 / Cabriolet
  • 2000-2006 Audi TT
  • 1999-2003 Saab 9-3 / 9-5 Models
  • Various VW Golf/Passat/Beetle 1.8T applications

Don't let a failing valve rob your 1.8T of power. Upgrade to the GFB Hybrid TMS for improved response and long-term reliability. Explore our full catalog of performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2005 Audi A4 Base
2003-2006 Audi A4 Cabriolet
2000-2006 Audi TT Base
1999-2001 Saab 9-3 Base
1999-2003 Saab 9-3 SE
2003 Saab 9-3 Arc
2003 Saab 9-3 Linear
2003 Saab 9-3 Vector
1999 Saab 9-5 Base
1999 Saab 9-5 SE
2000 Saab 9-5 Gary Fisher
2000-2001 Saab 9-5 2.3t
2002-2005 Saab 9-5 Linear
2004-2005 Saab 9-5 Arc
2006-2009 Saab 9-5 2.3t
2008-2009 Saab 9-5 Aero
2009 Saab 9-5 Griffin
2002 Volkswagen Beetle Sport
2002-2003 Volkswagen Beetle GL
2002-2004 Volkswagen Beetle Turbo S
2002-2005 Volkswagen Beetle GLS
2000-2001 Volkswagen Golf GLS
2000-2001 Volkswagen Golf GTI GLS
2002 Volkswagen Golf GTI 337
2002-2005 Volkswagen Golf GTI 1.8T
2003 Volkswagen Golf GTI 20th Anniversary
1998-2004 Volkswagen Passat GLS
2004 Volkswagen Passat GLS 4 Motion

Product Details

Product Description
Part Numbers
Sizing & Fit

About Go Fast Bits

Go Fast Bits engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Go Fast Bits lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Classic 1.8T Performance with GFB Hybrid TMS

The legendary 1.8T engine remains a favorite for tuners, and the GFB Hybrid TMS 20mm Blow Off Valve is the perfect way to modernize your turbo system. Featuring a 20mm inlet and outlet, this valve is a direct replacement for the aging factory diverter valves found in many 90s and early 2000s European vehicles. It utilizes GFB's proven dual-port design to provide both recirculation for engine health and atmospheric venting for that classic turbo sound.

Why Upgrade?

  • Precision Fitment: Designed specifically for 20mm hose configurations.
  • Staged Venting: Recirculates air at low lift to prevent stalling or rich running, while venting at high boost for sound.
  • Reliability: Replaces fragile factory plastic valves that are prone to cracking and leaking.
  • Improved Boost Recovery: Faster valve response keeps your turbo spooled between shifts.

Vehicle Compatibility

  • 1997-2005 Audi A4 / Cabriolet
  • 2000-2006 Audi TT
  • 1999-2003 Saab 9-3 / 9-5 Models
  • Various VW Golf/Passat/Beetle 1.8T applications

Don't let a failing valve rob your 1.8T of power. Upgrade to the GFB Hybrid TMS for improved response and long-term reliability. Explore our full catalog of performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2005 Audi A4 Base
2003-2006 Audi A4 Cabriolet
2000-2006 Audi TT Base
1999-2001 Saab 9-3 Base
1999-2003 Saab 9-3 SE
2003 Saab 9-3 Arc
2003 Saab 9-3 Linear
2003 Saab 9-3 Vector
1999 Saab 9-5 Base
1999 Saab 9-5 SE
2000 Saab 9-5 Gary Fisher
2000-2001 Saab 9-5 2.3t
2002-2005 Saab 9-5 Linear
2004-2005 Saab 9-5 Arc
2006-2009 Saab 9-5 2.3t
2008-2009 Saab 9-5 Aero
2009 Saab 9-5 Griffin
2002 Volkswagen Beetle Sport
2002-2003 Volkswagen Beetle GL
2002-2004 Volkswagen Beetle Turbo S
2002-2005 Volkswagen Beetle GLS
2000-2001 Volkswagen Golf GLS
2000-2001 Volkswagen Golf GTI GLS
2002 Volkswagen Golf GTI 337
2002-2005 Volkswagen Golf GTI 1.8T
2003 Volkswagen Golf GTI 20th Anniversary
1998-2004 Volkswagen Passat GLS
2004 Volkswagen Passat GLS 4 Motion

Product Details

Product Description

About Go Fast Bits

Go Fast Bits engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Go Fast Bits lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Classic 1.8T Performance with GFB Hybrid TMS

The legendary 1.8T engine remains a favorite for tuners, and the GFB Hybrid TMS 20mm Blow Off Valve is the perfect way to modernize your turbo system. Featuring a 20mm inlet and outlet, this valve is a direct replacement for the aging factory diverter valves found in many 90s and early 2000s European vehicles. It utilizes GFB's proven dual-port design to provide both recirculation for engine health and atmospheric venting for that classic turbo sound.

Why Upgrade?

  • Precision Fitment: Designed specifically for 20mm hose configurations.
  • Staged Venting: Recirculates air at low lift to prevent stalling or rich running, while venting at high boost for sound.
  • Reliability: Replaces fragile factory plastic valves that are prone to cracking and leaking.
  • Improved Boost Recovery: Faster valve response keeps your turbo spooled between shifts.

Vehicle Compatibility

  • 1997-2005 Audi A4 / Cabriolet
  • 2000-2006 Audi TT
  • 1999-2003 Saab 9-3 / 9-5 Models
  • Various VW Golf/Passat/Beetle 1.8T applications

Don't let a failing valve rob your 1.8T of power. Upgrade to the GFB Hybrid TMS for improved response and long-term reliability. Explore our full catalog of performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2005 Audi A4 Base
2003-2006 Audi A4 Cabriolet
2000-2006 Audi TT Base
1999-2001 Saab 9-3 Base
1999-2003 Saab 9-3 SE
2003 Saab 9-3 Arc
2003 Saab 9-3 Linear
2003 Saab 9-3 Vector
1999 Saab 9-5 Base
1999 Saab 9-5 SE
2000 Saab 9-5 Gary Fisher
2000-2001 Saab 9-5 2.3t
2002-2005 Saab 9-5 Linear
2004-2005 Saab 9-5 Arc
2006-2009 Saab 9-5 2.3t
2008-2009 Saab 9-5 Aero
2009 Saab 9-5 Griffin
2002 Volkswagen Beetle Sport
2002-2003 Volkswagen Beetle GL
2002-2004 Volkswagen Beetle Turbo S
2002-2005 Volkswagen Beetle GLS
2000-2001 Volkswagen Golf GLS
2000-2001 Volkswagen Golf GTI GLS
2002 Volkswagen Golf GTI 337
2002-2005 Volkswagen Golf GTI 1.8T
2003 Volkswagen Golf GTI 20th Anniversary
1998-2004 Volkswagen Passat GLS
2004 Volkswagen Passat GLS 4 Motion

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