Brand Search : Go Fast Bits Store Path : Home > Blow Off Valves | Go Fast Bits Accessories SKU : 14542 Item Class : BOV
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Here is a replacement trumpet that gives a different sound and is Easy to Install! Simply screw this Whistling trumpet in place of your existing trumpet and it will produce an aggressive whistle that sets your car apart from others. In normal driving conditions it gives a typical "whoosh" sound, but once the revs and boost level rise, a high pitch whistle noise takes over.Please Note: There are a few conditions that must be fulfilled to get the most out of this product. Your valve should be set to full atmosphere venting, and boost must be at least 12 psi (0.81 bar). The whistle noise is dependant on air velocity through the trumpet, and low-boost set-ups will not be effective.