Hello, everybody.
Im new here and i hope i post where i should.
I ve got a x5 e70 non lci, 30d 2010. I got a turbo whistle between 1500-2000 rpm and i dont know why...the engine pulls good, the sound is louder when cold, but it is not gone when fully warmed. Also, i had the swirl flaps blanked and the vacuum hose is blanked with a screw.
Can you help me, please ? Im tired of this noise... drives me mad.


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