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GFB Whistling Trumpet (suits all valves)
Sale price
$40.41 USD
Regular price
$44.90
Unit price
Shipping calculated at checkout.
Have a Question?
Not sure if this fits your vehicle? Send us a question before ordering.
The 5702 can be used in place of the standard trumpet on all GFB valves, and will make the whistling sound more readily than the 5701 (high boost and RPM is required to get the whistle from a 5701), and at a slightly higher pitch.? Like the 5701 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.
Proposition 65 Warnings.
Cancer and Reproductive Harm. See details below.
Items that are not CARB Legal will not be sold and ship to California or CARB states.
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