Dump valve Audi VW Ford Mazda 25mm replacement Bosch Answers TMS GFB

At first glance, the GFB Respons dump valve may seem like a simple dual-port dump valve, but it offers much more thanks to its ventilation bias adjustment system. This unique system allows you to precisely control the amount of air that escapes from each of the two outlets, providing unparalleled flexibility.

Key Benefits:

Sound Level Control:

Total Recirculation: For quiet, factory-like operation.
Total Exhaust to Atmosphere: For maximum blowing noise.
Custom Mid-Tuning: Adjust the sound to your liking, anywhere between the two extremes.
Compatibility with MAF Sensitive Systems: Get a blow-by sound without the risk of stalling, backfiring, or other problems associated with systems using Mass Air Flow (MAF).

Superior Performance:

Better Throttle Response: Improves your engine's responsiveness for a more dynamic ride.
Faster Boost Recovery: GFB's TMS (Turbo Management System) technology helps bring engine power back to full power up to 30% faster than a factory bypass valve during gear changes.
Unlimited Boost Hold: Maintains boost pressure without limit for optimal performance.
Ventilation Polarization Adjustment: The GFB's ventilation polarization adjustment system works by turning an adjustment ring that simultaneously adjusts the atmospheric and recirculation ports. This allows for ventilation ratios ranging from 100% recirculation to 100% atmosphere and all possible levels in between, providing total customization.
Direct Fit Kits Available: For ease of installation, direct fit kits are available for various vehicle models, ensuring perfect compatibility and easy installation.

AUDI 8L (1996-2003) 1.8t
AUDI B5 (1995-2001) 1.8t
AUDI B6 (2001-2005) 1.8t
AUDI S3 8L (1999-2003) 1.8t
AUDI TT 8N 1.8t 98-06
VW Golf GTI Mk4 1.8t 97-05
VW New Beetle 1st generation 1.8t
VW Passat B5-B5.5 1.8t 96-05
VW Polo GTI Mk4F (Typ 9N3) 1.8t 05-09
VW Bora MK4 1.8t 00-05
SAAB 9-3 Turbo 98-02
SAAB 9-5 Turbo 98-09