????????

maybe because they SUCK!!!!! BWUAHAHAHAHAHAHA! That's a hoot. Nah, wasn't that funny. I dunno. Good question. I wanna know too.

they are less restrictive. The stock intake is enclosed inside a box so it won't make so much noise, this is good if motor noise bothers you but bad if you want as much power as possible from your car.
I guess the box also helps keep the filter clean.

if you look at the stock intake then you will see alot of plastic, and plastic boxes and bumps and stuff in the tube leading to the in throttle body. then after the box that the filter is in i think there is another tube that leads to somewhere that is close to the front left fender. that plastic that all of that is made out of tends to muffle the sound of the sucking noise coming from the t/b. there is also some noise that comes from the overlap in the cams. which is to say there is a short moment when the intake cam is open while the gas/air is exploding. so when you take out all the plastic and replace it with metal pipe and a thin filter. then you hear all the nice sounds that come from your engine. the metal of the aftermarket intake is made only to increase hp. but the stock pieces are designed with ridges in them that muffel the noise that comes out of the engine. plus metal transfers sound alot better than plastic. hope that helps. and if i'm wrong then somebody tell me. but if i helped any give me some nice comments and stars. i still dont have any :(





weapon-r intake
greddy headers
apex-i n1 catback
afx udp
energy suspension
motor mounts
cf altezza tail lights
bored t/b

hey how do you like your n1.. how does it sound... what size is that catback piping.. :-).. sorry a little off topic..

i love the sound my iceman cai makes when i gun it.. sounds so mean and like no other 4 banger i know of.. and now to complete that nice in the back of the car.. :-)

I'd say 90% is correct. The big part is the filter, the cotton guaze filters pull a ton more air in, and are not enclosed in the plastic box, so that is the primary sound. If you take the top of the stock air box so only the filter is there you will hear the air noise and engine noise.

Most of the sound you hear from the intake is exhaust noise, well the the combustion in the chambers, with the open intake the sound can be heard better. Dont get me wrong you hear air coming in the intake as well but that is the whistling sound, the deep growl you hear is coming from the engine itself doing its thing

I love the growl of my AEM CAI!!!!!!!!!!!

i think mine got louder when i installed my exhaust

yo mike, you got any pictures of your car wit the exhaust on?

The stock air box actually has a resonator that muffles the sounds just like a resonator does on an exhaust. They quiet it down for the normal people who don't know how to drive

"The fastest draw is when the sword never leaves the scabbard,
The strongest way to block, is never to provoke a blow,
And the cleanest cut is the one withheld."

Michael J. Kulaga
e-mail: Michael_97RS@2gntDSM.zzn.com aol IM: MJKulga
http://highlander.dsmpower.com/

All Motor Beast in the Making

Injen CAI, 55mm TB, Hooker 4-1 Stepped Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads

To Be Installed: Ported/Polished Intake Manifold, Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads