Tial Q Blow Off Valve

The Tial Q Blow-Off Valve is the refined successor to Tial’s legendary 50mm valve, built for enthusiasts who demand consistent, reliable boost control without compromise. Whether you’re running a stock-turbo Fiesta ST or a heavily built Ecoboost platform, this valve delivers the same trusted performance Tial is known for, now with expanded customization options. It’s the go-to choice for anyone seeking a proven, direct-fit upgrade over factory or lesser aftermarket valves.

Specifications

• Valve Size: 50mm
• Design: Newer version of the popular Tial 50mm valve
• Flange Compatibility: Uses same weld flanges as previous Tial 50mm valve
• Color Options: Red, Blue, Black, Silver, Purple
• Flange Material Options: Aluminum Weld Flange, Steel Weld Flange, Stainless Steel weld, Convert to HKS style flange, 1" (25.4mm) hose style mounting Flange, 1.25" (31.8mm) hose style mounting Flange, 1.5" (38.1mm) hose style mounting Flange, Omit the flange option
• Spring Pressure: Customizable, specify at time of order

Performance & Application

This blow-off valve is designed as a direct bolt-on replacement for applications already using Tial’s existing weld flange setup, making it a seamless upgrade path. It’s suited for a wide range of turbocharged applications where consistent, high-flow boost release is critical. Enthusiasts building or upgrading their Ecoboost-powered vehicles, including the Ford Fiesta ST platform, will find this valve integrates cleanly into existing setups. The ability to specify spring pressure and flange material allows the valve to be tuned to the specific boost demands of the build.

Compatibility & Fitment

• Ford Ecoboost applications
• Ford Fiesta ST 1.6L Turbo (2014+)

Frequently Asked Questions

Is the Tial Q compatible with existing Tial weld flanges?

Yes, the Tial Q uses the same weld flanges as the original Tial 50mm valve, making it a direct bolt-on replacement.

Can I customize the spring pressure on this valve?

Yes, spring pressure is a required option to specify at the time of order.

What flange material options are available?

Options include Aluminum Weld Flange, Steel Weld Flange, Stainless Steel weld, a conversion to HKS style flange, or hose style mounting flanges in 1", 1.25", or 1.5" sizes. You can also choose to omit the flange entirely.

What color options are offered?

The valve is available in Red, Blue, Black, Silver, and Purple.

For enthusiasts who demand proven boost control backed by Tial’s reputation for quality, the Tial Q Blow-Off Valve delivers a dependable, customizable solution ready to meet the demands of serious builds.