at a certain thottle position when pressing on very lgihtly at a certain rpm there is a whistle coming from my intake(b16) just wondering what it was, it does it in my friends integra but most noticably in his RSX type s, his chirps real loud

i'm boosted now but i was in my friends cars and his intake has the whistle too, just wondering what it is out of curiosity

 

its the suction on the intake its normal some are louder than others. Make sure you have the inlet on the intake tube on properly or capped off.

 

If you ever hear a RAV4 gun it, that thing whistles like a mother!!!! My friend's grandmother's rav4 does it. Then after I knew about the RAV4, I noticed 6 other rav4's Ive seen on the road whistle the same way.. It is LOUDDDD