• Photo - Primary
  • Photo - Close Up
  • Photo - out of package
  • User 9
Photo - Primary
Photo - Close Up
Photo - out of package
User 9
The 5701 can be used in place of the standard trumpet on GFB valves (Part numbers T9003 & T9503), and will make a whistling sound. However, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50/50 venting.

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GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)

SKU GFB5701
$42.75
$38.48
The 5701 can be used in place of the standard trumpet on GFB valves (Part numbers T9003 & T9503), and will make a whistling sound. However, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50/50 venting.
$42.75
$38.48
Photo - Primary Photo - Close Up Photo - out of package User 9
Photo - Primary Photo - Close Up Photo - out of package User 9

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The 5701 can be used in place of the standard trumpet on GFB valves (Part numbers T9003 & T9503), and will make a whistling sound. However, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50/50 venting.

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