http://vocaroo.com/i/s0kaYS7oQ439 I've recorded HKS intake kit I have fitted since some wanted to hear it before they wanted to purchase. Yes surely it makes the turbo icon chuchu sound. As I am older it's a little embarrassing for me. As I fitted the HKS intake kit I hear...the turbo spinning and some kind of grindy noise. More like shhhhhhhhh! As I gear up it goes shh'd shhh'd. It could be the turbo bearing...but sound is definetely not coming from the turbo. Maybe cracked intake pipe? HKS intake holders; do you get sounds like this?