Gotta say... the constant hissing from the CAI is kind of annoying , although the roar that comes when the pedal hits the floor is quite enjoyable.

I wish I could keep that roar without the hissing... Anyone else annoyed by that darth vader sound or know how to cure it? Is it just the way it is, or did I get a bad install?

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2001 Silver CL-S
Factory Spoiler, mud flaps, trunk tray
20% Tint
Denso Iridium Plugs
AEM CAI & Pulleys getting installed today!!
Comptech headers, sways, exhaust, and H&R sports on the way

 

Mine is the same way. I think almost everybody is getting the hissing noise. Did you install you pulleys yet? Did you notice a difference with the pulleys, and CAI?

Spiro

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Black/Black 2001 CL-S
Random Technology Cat
RED AEM CAI
Polarg M6 Roadlamps

 

CAI's are supposed to hiss when the engine is cold. There's a topic about that somewhere that I started. It explains in detail just what is going on. When the engine is warmed up it subsides considerably. If I listen closely, I can hear the air being sucked in, but it's not annoying at all. Can you notice a difference between when the car is cold and warm? If not, you may have a problem. I'd give it a few weeks though as you'll get used to it. I thought the CAI was really loud at first and now I'm just used to it - it seems normal! Having recently driven some screaming 4 cyl engines (Miata, S2000), I thoughts.... gee... these things are kinda quiet

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2001 Acura 3.2CL Type S
Comptech Springs
Comptech Sway Bars
Comptech Headers
AEM CAI
PIAA 19169

 

that's the reason why i removed the intake (short ram from AEM) because i felt the hissing and the whistling sound were annoying. but i think it's due to the more free flowing air filter!

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CL-P....icy white!
moon roof visor
mud guards
genuine acura nose mask
genuine acura burlwood shift knob
polarg m-12 on blinkers
m-4s on internal lamps
m-4 on rear plate lamp
piaa bulbs on road lamps
K&N drop in filter
Catz XLO Driving lights
zaino polish
"i drive it like my grandma....j/k"

 

Which intake did you get the AEM or Xephyr?? Do you have a bypass valve??

If you have a leak in the intake it may cause to make a low droaning noise. I have the AEM w/ bypass and it's not that noticeable (heck let me correct that, it's NOT noticeable) inside the cabin.



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01'
Black/Ebony CLS

 

I heard mine hissing for about 2 minutes this morning, probably because my car hadn't warmed up yet. It was the first time I heard the hissing for so long, usually I just hear it when I shut the car off.

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01 white/ebony CL-S
Pewter Xephyr CAI
PIAA's 19224

 

mine hisses until the car is warm, but once it is, no more noise until I hit WOT



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Astroboy out...

2001 Acura CL Type S: Comptech: Headers, filter, sways, springs, koni shocks, Volk Racing SE37's in 18", goodridge braided brake lines, AEM CAI (blue), APEXi V-AFC, full kicker system, 13" Brembo's on the way with slotted discs for the rear
1996 Porsche 911 Twin Turbo: H&R Springs and sways, Bilstein shocks, ported and polished, crillo rods, new valvetrain
1995 VW Golf: 1999 VR6 Swap, H&R Coil Overs, neuspeed strut bars, neuspeed sway bars, 2.5" Stainless TT exhaust w/ Borla, 13" AP Racing big brakes

 

I have the AEM intake, and I just notice it mostly after starting the engine. If I am stopped with the windows down I can hear the constant sucking noise. When I hit the gas it disappears... Probably just being anal...

Ill give it a couple weeks...
Gotta love the vtech roar, though. Maybe ill wait till I get my headers and exhaust installed next week and see how it sounds then...

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2001 Silver CL-S
Factory Spoiler, mud flaps, trunk tray
20% Tint
Denso Iridium Plugs
AEM CAI & Pulleys getting installed today!!
Comptech headers, sways, exhaust, and H&R sports on the way

 

I've never heard the hissing from my CAI, but then again I live in the desert and it's always warm,I also don't drive with the windows down much at all, inside the cabing the only noticable sounds are the 2-3.5K rpms through the exhaust, and the VTEC kickins.

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_ _____________________ _
'01 Black CL S, Spoiler, Tint,Comptech Headers, Sways, Exhaust& Springs, AEM CAI w/ Bypass,Denso Iridium Plugs