hahahahaha ile chafya hata IMPREZZA inapiga,sauti ile inatoka kwenye BOV-BLOW OFF VALVE....nimeiba maelezo yaliyonyooka kutoka wikipedia kidogo hapo chini
A
blowoff valve (
BOV),
bypass valve or
dump valve is a pressure release system present in most
turbocharged engines. Its purpose is to prevent
compressor surge, and reduce wear on the turbocharger and engine. Blowoff
valves relieve the damaging effects of compressor "surge loading" by allowing the compressed air to vent to the atmosphere, making a distinct hissing sound, or recirculate into the intake upstream of the compressor inlet.