GFB DVX diverter valve for Hyundai Veloster

More performance and adjustable venting sound

GFB DVX combines the proven DV+ diverter valve design with two venting outlets and a patented system for adjusting the venting ratio. This provides better boost pressure retention and faster response to changes in throttle position, while allowing complete control over the volume of the venting sound.

How does DVX differ from other valves with the characteristic “whoosh” sound?

• DVX is not merely a device for creating sound, like BOV spacers, but uses a modified valve operating method to provide the same performance benefits as DV+.
• It retains ECU control, enabling the fastest possible operation.
• The patented venting ratio adjustment system allows the sound to be changed simply by moving the adjustment lever.
• It is built for long-term use.

GFB DV+ design eliminates the service life and boost pressure leakage issues that are common with factory diverter valves. It changes the operating method to so-called pilot activation, providing improved operation on both standard and modified engines.

DVX retains the part of the factory system that works well and replaces its weaker components, rather than requiring replacement of the entire factory diverter valve system.

Compatibility

T9661 is a direct replacement for the factory valve with two venting outlets on Hyundai Veloster and Kia vehicles.

Why not just use a spacer?

There are many BOV spacers on the market that create the characteristic sound. They work by using the factory diverter valve and redirecting air into the atmosphere. The shortcomings of the factory valve design therefore remain, while its flow capacity is also significantly reduced by the small openings in these spacers.

ECU control compared with vacuum control

Some BOV kits completely eliminate ECU control and use only vacuum from the intake manifold. This method is not inherently problematic, as most BOV valves operate this way, but ECU control is significantly faster. It detects and responds to even small changes in throttle position, allowing the system to operate more quickly.

The unique venting ratio adjustment system

GFB’s venting ratio adjustment system uses an internal rotating sleeve that allows the opening of the recirculation and atmospheric ports to be adjusted continuously. You are therefore not limited to a fixed 50/50 ratio or 100% atmospheric venting, but can set the ratio as desired.

The atmospheric outlet is designed as one large opening rather than several small holes, making the venting sound deeper and louder than with a BOV spacer.

Summary

DVX improves system operation, increases boost pressure retention and enables a fully adjustable venting sound – from almost inaudible to very loud.

• Weight: 0.45 kg
• Made in Australia to ISO 9001 standard

Suitable for: Hyundai I30 II (GD), Hyundai Tucson III (TL), Hyundai Veloster I (FS), Kia Optima IV (JF).