When it comes to upgrading your turbocharged vehicle, few components offer as much bang-for-your-buck as a high-quality diverter valve. Whether you're chasing sharper throttle response, improved boost retention, or that signature blow-off sound, GFB (Go Fast Bits) has a solution tailored to your needs.
With the largest and most advanced range of diverter and blow-off valves on the market, GFB’s lineup includes DV+, VTA, DVX, SV52, MACH2, HYBRID, RESPONS, and DECEPTOR PRO II. But which one is right for you?
Let’s break down the differences to help you make an informed choice. If you're looking to purchase a GFB diverter valve, check out our brand page here!
GFB DV+ – OEM Upgrade, No Nonsense
- Best for: Drivers who want performance without the noise.
- Key benefits: Retains factory ECU control, improves boost holding, and eliminates common OEM valve issues.
- Sound level: Quieter operation.
- Why choose it: Ideal for those who want a stealthy upgrade with tangible performance gains and zero fuss.
GFB VTA – Performance with Sound
- Best for:Enthusiasts who want that classic blow-off valve whoosh.
- Key benefits: Vents to atmosphere for maximum sound, while maintaining performance.
- Sound level: Loud.
- Why choose it: Perfect for those who want their turbo to announce itself at every gear change.
GFB DVX – Volume Control Meets Performance
- Best for:Tuners who want flexibility.
- Key benefits: Adjustable venting bias lets you control how much air vents to atmosphere vs recirculation.
- Sound level: Customisable.
- Why choose it: Offers the best of both worlds, performance and tunable sound
GFB SV52 – Compact Power
- Best for: Space-conscious builds.
- Key benefits: High flow in a compact design, with improved boost holding.
- Sound level: Moderate.
- Why choose it: A newer addition to the range, ideal for tight engine bays without compromising performance.
GFB MACH2 – Recirculation or Atmospheric
- Best for: Versatile setups.
- Key benefits: Single outlet valve that can be configured for either recirculation or atmospheric venting.
- Sound level: Depends on setup.
- Why choose it: A flexible option for those who may change their setup later
GFB HYBRID – Three Valves in One
- Best for: Cars with sensitive ECUs or MAF sensors.
- Key benefits: Dual outlet design balances sound and drivability, reducing backfiring and stalling.
- Sound level: Balanced.
- Why choose it: Combines the benefits of recirc and atmospheric venting for a smarter solution.
GFB RESPONS – The Evolution of Dual-Outlet BOVs
- Best for: Drivers who want control over sound and performance.
- Key benefits: Patented Venting Bias Adjustment System for infinite sound tuning.
- Sound level: Adjustable.
- Why choose it: Ideal for cars with sensitive engine management systems — tune the sound without sacrificing drivability
GFB DECEPTOR PRO II – In-Cabin Control
- Best for: Tech-savvy enthusiasts.
- Key benefits: Electronic sound adjustment from inside the cabin.
- Sound level: Fully adjustable at your fingertips.
- Why choose it: The ultimate in convenience and control — change your valve’s behaviour on the fly.
The Round Up: Performance Without Compromise
All GFB diverter valves feature Turbo Management System (TMS) technology, designed to reduce lag, sharpen throttle response, and maintain boost pressure during gear changes. Whether you're building a stealthy sleeper or a track-ready beast, GFB offers a valve that fits your goals.