Selanne_2001

I have a Short ram intake on my car and i just installed headers yesterday, however after it was installed, a loud air "swishing" sound is heard on the intake side of the engine when i accelerate past 3000 rpm, and that only. It doesn't make any sound on idle or engine breaking, I'm just wondering if it's normal due to the increase of air flow thru the engine.(I never had the sound before tho)

Brennan

i have a CAI and thats how mine sounds and thats what its supposed to sound like... It should sound like its taking a big gulp of air. I don't know what the short ram intake sounds like but the noise your talking about sounds pretty normal. I'm sure other people can help you out considering i'm not an expert on this one

Tsx536

Did you install the DC header?

If so, this is normal with that header.

Maxboost

Okay let me get this straight. When you had the SRI on you don't hear this "swoosh" sound at all? Or you installed both header and SRI at the same time and asking if the "swoosh" sound is normal?
If you just installed the SRI then the sound is normal that's how SRI should sounds like because you have removed all of the resonator and baffling that came with the stock setup so switching to SRI gives this "swoosh" sound.

Selanne_2001

I had a minor swoosh sound before but after the header installation(installed at seperate times) the swoosh sound became a lot louder

Tsx536

Is it a DC Header?

gsclifton

iTrader: (2)

^^^

If it is DCS header, pls post that you did read the posts here and had it welded ....

Selanne_2001

it wasn't a dc header but a obx one so i guess they are similar since obx just copies dc headers anyways

gsclifton

iTrader: (2)

^^^

I thought the OBX one was a horrible fit

JTso

iTrader: (2)

Perhaps exhaust leak from the header flange.

Selanne_2001

but then wouldn't that be constant instead of only on acceleration past 3k rpm and only comin' from intake side of enigne??

JTso

iTrader: (2)

You mean you have never heard that air rushing sound before the header install? What you are describing is very typical of an intake mod, SRI being even louder.

Selanne_2001

I had the sri before, but then it just became a lot louder after the header and it's pretty loud only past 3krpm +

Maxboost

It gets loud under WOT or everytime you hit the gas?

Selanne_2001

Wot and also whenever i hit the gas at 3k rpm and above