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

Marsoni M251S
Sale price$46.77
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Get it in 3 business days with 1 day shipping. Friday, May 29
GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)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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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
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Omroy Samuels
San Leandro, US
★★★★★ 5
Comfortable
Color: 2001black, Size: Large
Very comfortable fits nicely
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025
J
Verified Purchase
Josh P
Massapequa, US
★★★★★ 5
Great shirts!
Color: 2001black, Size: X-Large
This particular company makes high quality shirts that I have never been unsatisfied with!
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Reviewed in the United States on May 4, 2025
H
Verified Purchase
HHH
Dallas, US
★★★★★ 3
not bad
Color: Dark Gray, Size: Small
Shirt seems decent for the price. I ordered a size small and it's pretty boxy and almost too big. I often wear a medium in shirts, so this runs pretty large.
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Reviewed in the United States on May 1, 2024
S
Verified Purchase
Steve R. Ferrier
Belleville, US
★★★★★ 5
Nice color, nice fit, nice material
Color: 2001pink, Size: XX-Large
2XL is what i usually wear, it fits correctly. Did not shrink (much) after washing.
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Reviewed in the United States on December 7, 2024
J
Verified Purchase
Jeff S.
Omaha, US
★★★★★ 5
Awesome shorts
Color: Green, Size: 36
I love these! Perfect fit. Great color, look awesome!
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Reviewed in the United States on August 26, 2025

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