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- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 25 - Jun 30
For Your Every Summer RSVP, with Code: SUMMER15
Description
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.


Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.0 ★★★★★
Based on 487 reviews
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Product Reviews
★★★★★ 5
Great for the Money
Color: Blue, Size: X-Large
Nice cut. Properly sized. Great product for the money.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
I like it!
Color: Khaki, Size: Large
Worth the price. Comfortable. Great assortment of colors.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Sweet
Color: Navy Blue, Size: Large
Good fit, solid quality.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Good quality
Color: White, Size: 3X-Large
For this item is best to get a size up. They run small, but the quality is very good.😊
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Size
Color: Navy Blue, Size: 3X-Large
love the shirt and they fit well for an overweight man. All the ones I got are consistent in size and you don't see that often.
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Reviewed in the United States on April 21, 2026




