GFB Mach 2 Blow Off Valve for Evo I-X / 3000GT (T9133)

Go Fast Bits



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The Go Fast Bits Mach 2 blow off valve is a direct, bolt-on replacement for the Evolution I-X, 2008+ Lancer RalliART and 3000GT / Stealth. This is a quiet recirculating bov with 33mm inlet and 33mm outlet.

Use (5933) to convert this to an atmosphere vent.

Vehicle Fitment:
1992-2006 Evolution I-IX
1991-1999 3000GT VR-4
1991-1996 Stealth R/T
2008-2015 Lancer RalliART 4B11

Purchase Includes:
(1) Valve
(1) Allen Key

More Info:
The simple and essential mod for quicker boost response! Utilizing proven TMS technology to ensure dependable boost holding and optimum throttle response.

Using GFB's TMS technology, the Mach 2 can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears. No additional adaptors, parts or vehicle modifications are required to install, simply remove the factory bypass valve and replace it with the Mach 2. It's that simple!

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 to protect the engine and the other is they are not optimized 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.

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Customer Reviews

Based on 2 reviews
J. (Delano, CA, US)
Blow off Valve

Works great. Fits perfect

Arashi Yuya (Gifu City, 21, JP)
Go FastBits Evo I-X/3000GT Mach 2 Blow Off Valve

Good product

Cancer and Reproductive Harm