ya mine whistles at about half throttle and right when i go into any gear but after about 1 or 2 seconds it gets higher pitched and then stops, speaking of whistling i was up in MN a while back in my civic and this guy with the exact same car(his was si cuz it wasnt made in canada) had a horn that whistled like you would whistle at a good lookin girl. i figure he was just sayin nice car

 

my friend has that little horn, its funny when ugly people walk past the car haha

 

They all do that, I personally like it. It's normal.

 

mine whistles all the time, only at specific rpm range. i have a aem short ram as well. my brothers' friends thinks i have a supercharger. :chuckles:

 

Wow. So that was that whistling sound. I though there was something wrong with my car this whole time. BTW im using AEM short ram

 

My ghetto-fab short ram used to make a blow-off valve sound when I let off the throttle. Lol! people used to think it was turbo. My K&N short ram doesn't whistle no more cool noises for me...