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The GFB Mach 2 improves boost holding and throttle response using proven TMS technology.
Want performance without the noise? This sleeper-friendly valve returns boost up to 30% faster than stock when shifting gears.
Stock bypass valves often leak boost or slow throttle response. The Mach 2 fixes both with a pressure-balanced design that holds unlimited boost while maximizing performance.
Ships within 48 hours · Estimated delivery Jun 20 - Jun 25
US$40
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