Introducing the Mach 2 Bypass Valve

If you're looking for a reliable upgrade for your turbo model, the Mach 2 is here to impress! Just like the Respons and Deceptor Pro II, the Mach 2 comes with a variety of bolt-on kits that fit most popular turbo models. And when we say "bolt-on," we truly mean it! You won’t need any extra adaptors, parts, or modifications to your vehicle. Simply take off the factory bypass valve and pop in the Mach 2—it's that easy!

Recirculating or Atmosphere Venting?

The Mach 2 is designed as a 100% recirculating valve, meaning it’s perfect for those who want performance without the extra noise. If you’re in the mood for a bit of sound with your power, you can easily switch to atmosphere venting with our add-on conversion kit. The choice is yours!

Say Goodbye to Factory Bypass Valve Limitations

Factory bypass valves often come with two major drawbacks. They usually start opening at a specific pressure to protect the engine, which can hinder your performance. Plus, they aren’t optimized for quick throttle response. And let’s not forget—you can’t vent them to atmosphere without risking a stall!

The Solution: Mach 2

The Mach 2 addresses all these concerns. It can handle unlimited boost—no turbo could ever create enough pressure to cause damage. Thanks to TMS technology, you’ll enjoy maximum throttle response. And yes, you can vent to atmosphere with the conversion kit without stalling your engine!

Fitment

• Subaru Forester Sports 2.5 XT H4.2458cc 2008
• Subaru Forester XT H4.2458cc 2004-2005
• Subaru Forester XT Limited H4.2458cc 2006-2008
• Subaru Forester XT Premium H4.2458cc 2005
• Subaru Impreza L H4.2212cc 2001
• Subaru Impreza Outback H4.2212cc 2001
• Subaru Impreza Outback H4.2458cc 2002-2004
• Subaru Impreza Outback Sport H4.2458cc 2002-2004
• Subaru Impreza RS H4.2458cc 2001-2005
• Subaru Impreza TS H4.2458cc 2002-2004
• Subaru Impreza WRX H4.1994cc 2002-2005
• Subaru Impreza WRX H4.2458cc 2006-2007
• Subaru Impreza WRX Limited H4.2458cc 2006-2007
• Subaru Impreza WRX STI H4.2458cc 2004-2014
• Subaru Impreza WRX STI Limited H4.2458cc 2007
• Subaru Impreza WRX STI Limited H4.2458cc 2011-2014
• Subaru Impreza WRX STI Special Edition H4.2458cc 2010
• Subaru Impreza WRX TR H4.2458cc 2006-2007