GFB Mach 2 Plumb Back to Atmosphere Vent Conversion Kit Suits T9103/T9133

GFB Mach 2 Plumb Back to Atmosphere Vent Conversion Kit - Suits T9103/T9133

GFB is well known among Australian tuners for precision engineered blow off valve hardware, and this conversion kit lets you switch your Mach 2 blow off valve from recirculating to a proper atmosphere venting setup for that classic turbo psshhh.

This listing covers the atmosphere conversion kit for the GFB Mach 2 T9103 and T9133 blow off valves. It includes everything needed to plug the recirculation hose and swap in a firmer piston spring if required.

Note: The included firmer spring (part 6115) is only needed if the piston hovers open at idle on cars with higher idle vacuum, above roughly 60 kPa (18 inHg). If your Mach 2 seals fine on the standard softer spring (6116), there's no need to swap it.

Kit Contents

• Trumpet outlet (louder venting note, not required for function)
• Firmer piston spring, part 6115
• 33mm hose plug for blocking the recirc outlet

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your Mach 2 valve model matches T9103 or T9133 before ordering.

Not sure if this kit suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.