Go Fast Bits GFB Mach 2 TMS Recirculating Diverter Valve

Fits 1999–2000 Subaru WRX/STi and B4 Legacy, 1998–2004 Subaru GT/XT Forester

Part #: T9100

Overview

The GFB Mach 2 TMS Recirculating Diverter Valve is a high-performance upgrade designed for turbocharged Subaru models from the late 1990s and early 2000s. Crafted to enhance your vehicle’s boost response and reliability, this diverter valve is ideal for enthusiasts seeking improved throttle feel and consistent boost control. Its robust construction and advanced technology make it suitable for both daily driving and spirited performance applications, ensuring your turbo system operates efficiently under demanding conditions. This diverter valve helps optimize boost recovery during gear changes and maintains stable pressure levels, supporting your vehicle’s overall performance and drivability. Whether you’re upgrading for better response or aiming to handle higher boost pressures, the Mach 2 TMS is engineered to meet those needs with precision.

Key Features

Designed with durability and performance in mind, the GFB Mach 2 TMS features a proven TMS (Turbine Management System) technology that ensures rapid boost recovery and minimal lag. Its high-quality materials and precision engineering provide a reliable seal and consistent operation, even under boost pressures exceeding 100psi. The valve’s compact design allows for straightforward installation, making it a practical upgrade for your Subaru’s turbo system. The Mach 2 TMS is also engineered to produce minimal noise, giving you the option to enjoy performance gains with or without the characteristic blow-off sound.

• Constructed from durable, high-quality materials for long-lasting performance
• Utilizes GFB’s proven TMS technology for rapid boost recovery
• Capable of handling boost pressures over 100psi+
• Designed for quick and easy installation on Subaru 99-00 WRX/STi, B4 Legacy, and 98-04 GT/XT Forester
• Supports improved throttle response and boost stability
• Reduces compressor surge and boost spiking
• Offers a quieter operation option while maintaining high performance

Construction & Design

The Mach 2 TMS diverter valve features a precision-machined aluminum body with a high-quality silicone diaphragm, ensuring durability and a reliable seal. Its compact design allows for seamless integration into your vehicle’s existing turbo plumbing, while the internal components are engineered for consistent operation under high boost conditions.

Driving Feel & Feedback

This diverter valve enhances your vehicle’s response by providing quicker boost recovery during gear shifts, resulting in a more immediate and predictable throttle feel. Its design minimizes compressor surge, contributing to smoother acceleration and improved overall driving engagement.

Installation & Fitment

Installation is straightforward for those familiar with turbo system upgrades, with direct bolt-on compatibility for the specified Subaru models. No additional modifications are typically required, making it a convenient upgrade for boosting performance.

What’s Included

The package includes the GFB Mach 2 TMS diverter valve and all necessary hardware for installation, ensuring a complete upgrade kit for your turbocharged Subaru.