External wastegate V-Band GFB EX44

The EX44 wastegate from GFB (Go Fast Bits) is a compact, high-performance external solution for boost pressure management, specifically designed to withstand extreme conditions while providing precise and reliable control.

Precise Boost Pressure Control: With interchangeable springs, you can easily adjust the base boost pressure to meet different performance requirements.
Compact and powerful: Although small in size, the EX44 valve offers superior flow thanks to its optimized design.
Reliability in extreme environments: The high-end materials used (stainless steel and Nomex diaphragm) guarantee durability even under high boost conditions and extreme temperatures.
Ease of Installation: The V-Band mounting system makes installation and maintenance quick and easy.
Built-in Thermal Protection: Valve stem protection prevents sticking issues due to heat, ensuring continuous and reliable operation.

44mm Valve: This valve size offers high flow, ideal for applications requiring efficient exhaust gas management in supercharger systems. The inner diameter of the valve seat is designed to allow for optimal flow.

Interchangeable Spring Systems: The valve is equipped with 15 psi springs as standard, consisting of a 10 psi outer spring and a 5 psi inner spring. These springs can be modified to adjust the base boost pressure to 5, 7, 10, 12, 15, 17 or 22 psi, providing great flexibility for different engine configurations.

The corresponding pressures are:

5 psi = 0.34 bar
7 psi = 0.48 bar
10 psi = 0.69 bar
12 psi = 0.83 bar
15 psi = 1.03 bar
17 psi = 1.17 bar
22 psi = 1.52 bar

Compact Design: The GFB EX44 is one of the most compact external relief valves available, allowing for easy installation in tight spaces without sacrificing flow performance.

High-performance materials: The valve body is made of 253MA chrome-nickel stainless steel, a robust material designed to withstand high temperatures and corrosion.
The valve is CNC machined from stainless steel for maximum precision.
The diaphragm is made of Nomex-reinforced silicone, making it particularly resistant to extreme conditions, including heat.

Thermal Protection: An internal shroud protects the valve stem from excessive heat, preventing carbon buildup and sticking problems. This ensures reliable operation in harsh conditions.

V-Band Mounting System: This fastening system ensures secure and easy installation, with high mechanical strength and reduced risk of leakage.

Aluminum Actuator Housing: CNC machined from 6061 aluminum, the housing is lightweight yet strong, providing excellent resistance to high temperatures while remaining easy to handle.

Meets quality standards: The GFB EX44 is manufactured in Australia to ISO 9001 standards, ensuring a rigorous production process and high quality.

GFB's EX44 wastegate is an ideal solution for turbocharging applications requiring precise control, compact installation, and unmatched robustness. Designed to deliver reliability under the toughest conditions, it combines high flow with a compact design, while offering great tuning flexibility thanks to its interchangeable spring system.