Mach 2 TMS Recirculating Diverter Valve – Quiet Performance Upgrade

The GFB Mach 2 is a purpose-built recirculating diverter valve engineered to replace the factory bypass valve on a wide range of turbocharged vehicles. Designed for performance and durability, it improves boost response and reliability while retaining quiet, OEM-style operation.

TMS Technology for Faster Boost Recovery

GFB’s patented TMS (Turbo Management System) technology allows the valve to open and close progressively in response to boost pressure. Unlike basic factory valves that operate in a simple open-or-closed manner, the Mach 2 optimises airflow during gear changes and throttle modulation, helping the turbo return to peak boost more quickly.

High-Flow Equal-Port Design

With a 33mm inlet and 33mm outlet, this Mach 2 configuration offers excellent flow capacity for both standard and modified engines. The precision-machined piston design ensures consistent sealing under high boost while maintaining smooth operation across all driving conditions.

Recirculating Design for Smooth Drivability

As a fully recirculating diverter valve, the Mach 2 retains factory-style noise levels and air metering behaviour. This makes it ideal for vehicles that rely on recirculated airflow for stable fueling, eliminating drivability issues commonly associated with atmospheric blow-off valves.

Built for Reliability

Manufactured from high-quality materials and designed for serviceability, the Mach 2 is built to withstand heat, pressure, and long-term use. It is a reliable upgrade for drivers seeking improved response and boost control without compromising refinement.