{"product_id":"go-fast-bits-gfb-whistling-trumpet-for-stealth-fx-and-wrx-hybrid","title":"GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid)","description":"The 5701 can be used in place of the standard trumpet on GFB valves (Part numbers T9003 \u0026amp; 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.","brand":"Go Fast Bits","offers":[{"title":"Default Title","offer_id":44293130223788,"sku":"GFB5701","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0480\/2160\/2467\/files\/61edd63c62d03f6406535abe4fbce111.jpg?v=1744766236","url":"https:\/\/onefastshop.com\/products\/go-fast-bits-gfb-whistling-trumpet-for-stealth-fx-and-wrx-hybrid","provider":"OneFastShop","version":"1.0","type":"link"}