GFB T9114 Mach 2 TMS Recirculating Valve – Kia/Hyundai 1.6T-GDI Smartstream (G4FP)
The latest Smartstream 1.6 T-GDi engines fitted to Hyundai’s i20 N and other models do not use a MAF sensor which means that you can vent to atmosphere for that blow-off sound, if you like, without causing any driveability issues or ‘Check Engine’ lights. However, this Mach 2 valve is for those who want all the performance of the GFB TMS valve technology without any of the noise.
That said, Mach 2 gives you the freedom to fit an optional Atmospheric Venting Conversion kit at a later date to give you all the sound so you don’t need to buy a new valve.
Product Note: Only for models with Smartstream 1.6T-GDI engine (G4FP), NOT Gamma 1.6T-GDI (G4FJ). You can identify Smartstream models because they will have ‘Smartstream’ on the engine cover.
The Mach 2 is configured as a 100% recirculating valve (i.e. bypass, plumb back) as a direct factory replacement, for when you want all the performance WITHOUT the noise!
Why replace the factory bypass valve? Better performance! Factory bypass valves typically have two main shortcomings – one is that they are often designed to blow open above a certain pressure, and the other is they are not optimised for throttle response.
The Mach 2 solves both issues. With its pressure-balanced design, the Mach 2 can effectively hold unlimited boost (unlimited in that no turbo could ever produce enough pressure to damage it), and the TMS technology ensures maximum throttle response.
