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5701 Whistling trumpet drive-by |
| Sound clip of the Stealth FX blow off valve with the new whistling trumpet, 15psi boost on a WRX, recorded from the road side. | |
| 5701 Whistling trumpet in-car |
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| Sound clip of the Stealth FX blow off valve with the new whistling trumpet, 15psi boost on a WRX, recorded from inside the car. | |
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Standard Trumpet Driveby |
| Sound clip of the Stealth FX blow off valve with standard trumpet, 15psi boost on a WRX, recorded from the road side. This sound is the same as a Mach 1. | |
| Standard Trumpet In-car |
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| Sound clip of the Stealth FX blow off valve with standard trumpet, 15psi boost on a WRX, recorded from inside the car. This sound is the same as a Mach 1. | |
| Standard trumpet free revving |
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| Sound clip of the Stealth FX blow off valve with standard trumpet, free revving the engine in neutral. Recorded from in front of the car. | |
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Note: The standard trumpet on the Stealth FX is the same trumpet that is fitted to all of the other blow off valves in the GFB range. The different models all make the same sound, only the volume level varies. |
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