Watch in action

Superior Boost Control for your Subaru

The Go Fast Bits Mach 2 TMS Recirculating Diverter Valve is the premier choice for Subaru WRX and Forester owners seeking improved turbo performance. Designed to replace the failure-prone factory bypass valve, this Mach 2 unit utilizes GFB's proven TMS technology to ensure your turbo stays spooled and ready for action.

Performance Benefits

• Rapid Boost Recovery: Drastically reduces lag between gear shifts.
• Robust Design: Capable of handling extreme boost pressures, ensuring reliability under high-load conditions.
• OEM Integration: Fully recirculating design maintains proper air-fuel ratios and prevents ECU errors.
• Easy Installation: Designed specifically for the 2015+ WRX and 2.0XT Forester platforms.

Whether you are pushing stock boost or have upgraded your turbocharger, the GFB Mach 2 provides the consistent performance and durability required for spirited driving. Its precision-machined internal components ensure a leak-free seal, allowing your engine to reach its full potential. Don't let a weak factory valve hold back your Subaru's power. Experience the difference in throttle response and turbo efficiency with this high-quality upgrade from GGCRACING.