It wistles like my AEM CAI in my old saturn when you step on teh gas.

good question i have no idea??


bumpage..

mine does that also..i didnt know where the sound came from tho..

If i'm not mistaken, the filter is a charcoal filter which helps reduce the amount of emissions that leak out of the air filter when the car has been shut off. I'm not sure if the charcoal causes it to "whistle" more, but the sound is nothing to be alarmed about. All of my tCs do the exact same thing! It's simply the air being sucked through the filter at a high velocity!

It does the same thing with my K&N installed. I have a sneaking suspicion that it's air rushing through the throttle body. Just speculation though, but damn I like it wherever it's coming from :P

it sees ur mom walkin by

it sees ur mom walkin by :rofl:

It whistles because Scion designed it to make it sound like an aftermarket intake. The charcoal filter has nothing to do with it. You could rip it out and it would make the same noise. The stock intake is a CAI of sorts, since it draws intake air from the fender area and not from under the hood.

so that whistle sound is normal. not an intake leak right? oh and why are people so worried about hydrolock on the TC after you put the wheel well plastic back on, the filter is fully covered by it or did my slowwwww ___ forget to leave it off :doh:

It cant be the charcol filter, with the K&N CAI it was 3 times louder on my moms tC. it sounded so good I drove the car around just to make that noise. Turned a lot of heads. :silly:

i like the noise haha kinda sounds like a turbo when you take off haha

ok thanks man aslong as it aint no damn intake leak that install was a pain, but y are people worried about hydrolock the filter is incased in the wheel well plastic

That is not a leak it is just the sound of the air accelerating through the inlet tube. That or your intake is very happy.

Is it just me or everytime you shift does it sound like a quieter blow-off valve?

its just you, and please search for this noise there are 238723 post on this

I gota drive my girl friends moms Camry with the 2.4L and it makes the same whistle as my car

let me guess its the sound from your throttle body...

When the engine revs high, it requires a lot of air and feul...

The air has gotta run through a kinda sorta small pipe...so the whistle is the air rushing in the box...

I've noticed the whistle too.... and to make it a little louder just block off the silencer after the air box before the throttle body. :)

I've noticed the whistle too.... and to make it a little louder just block off the silencer after the air box before the throttle body. :)

you didnt know thats what the TC stands for "Turbo Charged" :rofl: but i love that sound i have people ask me all the time is that turbo..but i took that little box of and started my car and then i shut off but like you said if you block that of the whistle is louder..????how did u block it off..with what

I like the whistle. It makes me feel "special".

:rofl: .....me too..especially when people think it is a turbo!!!!

thats true... i mean... when i was driving my car and my fren was driving his car and we were next to each other, he told me when i rev high and changes gear it sounds like i have a BOV in my car.. LOL and im like KEEEWWWL

I'm gonna have to shamefully admit, I too like the whistle. Infact I'm pretty sure it's a ploy of the oil industry to make me use more gas because I like to step on the throttle just to hear it. So how do I make it louder, step by step would be nice. Is it reversable if I do it and it's obnoxious?
Scott aka Mouse

well in a diff forum someone said they install the kn cai and it still made the noise so right now no one knwos were it comes from...but i would like to now too...

I know. And you would too if you read my post:

It whistles because Scion designed it to make it sound like an aftermarket intake. The charcoal filter has nothing to do with it. You could rip it out and it would make the same noise. The stock intake is a CAI of sorts, since it draws intake air from the fender area and not from under the hood.

It's the sound the air makes going through the intake. Aftermarket intakes normally make this sound, and Scion designed the stock intake to make a similar sound.

Why does the airbox whistle?
Because you touch yourself at night.

It's called suction my friend, suction...... 8)

the whistling sound comes from air russhing through the throttle body at a given speed. and it is louder with the k&n cai. i liked it at first but now its just getting annoying.

hay guyz, if you awant teh wistel to be sooper laud, then jus opan up teh airbox a lil bit so it reasts on teh clips instead of teh clips holding teh airboxor clsed, that way people will think teh car is usng teh TURBO AND CAI LOLL AM I RITE?

hay guyz, if you awant teh wistel to be sooper laud, then jus opan up teh airbox a lil bit so it reasts on teh clips instead of teh clips holding teh airboxor clsed, that way people will think teh car is usng teh TURBO AND CAI LOLL AM I RITE?
Airbox? Who needs an airbox? I just took mine out and threw it away, along with the filter. Now it's super loud and my car's lighter and faster...

:rofl:

OK, I resisted as long as I could, but three weeks is as long as I could take it. Sorry!

Why does the airbox whistle?

Because it forgot the words...


:lalala:

i believe all of the toyotas do it. my friend has an IS300 with a sri and his is very loud. my guess it is from the vvt-i just as hondas v-tec have their own distinct sounds.