at present i have a forge dump valve on my car from scoobysport

i am curious to know if anybody knows what dump valve i can get which instead of the normal pishhh/hisss sound,makes a sound that sounds more like gaagooooooooooole!(pigeon squaling sound)like the ones you can get on cosworths,i have never actually heard a scooby make this dump valve noise so dont know if they exsist.

i know the above sounds quite mentally insane but i hope somebody knows what im on about

cheers

mike

 

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