GFB Blow off valve trumpet with filter mount

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If your BOV vents to atmosphere for sound and you drive in dirty environments, the 5703 trumpet is for you. It is designed to enhance the blow-off sound like a regular trumpet, but features a 38mm (1.5”) section onto which you can mount a suitable filter such as our 5711 (available separately). This ensures your BOV is protected from dust, sand, mud and other debris, whilst giving a much louder and more unique sound than using a regular hose barb outlet. Suitable for use on SXV, Mach 2, Hybrid, Respons, and Deceptor Pro II BOVs. 5711 filter and 5703 trumpet shown fitted to SXV:Kit includes:1 x 5703 Show more