Kooks exhaust leak?
Thread Starter
Racer
Joined: Jun 2004
Posts: 252
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From: Brevard NC
Kooks exhaust leak?
I have a sound that sounds like an exhaust leak or bad collector gasket from my Kooks headers. I know there is no gasket needed, but sure seems like it. I have checked gaskets and torque off header flange gaskets and they are fine. I have tightened the collector at the Cats very tight, but always has leaky sound. Anyone else experienced this and is it normal? Any suggestions of remedy?
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by C5nNC
I have a sound that sounds like an exhaust leak or bad collector gasket from my Kooks headers. I know there is no gasket needed, but sure seems like it. I have checked gaskets and torque off header flange gaskets and they are fine. I have tightened the collector at the Cats very tight, but always has leaky sound. Anyone else experienced this and is it normal? Any suggestions of remedy?
in my experience, exhaust leaks sound like a whistle or buzz, depending upon where it's leaking.
even though you tightend the header flanges did you, by any chance, check the headers themselves. you may want to check and retorque (carefule not to overtorque - them heads are alum.) the header to heads connections.
you may also want to check the rest of the exhaust system, i.e. cat-back, etc.
headers do allow a bit more noise but they shouldn't whistle.
a ticking noise is normal
Last edited by Zig; Sep 19, 2006 at 11:41 AM. Reason: added: a ticking noise is normal
Safety Car
Joined: Feb 2005
Posts: 3,557
Likes: 1
From: LongIsland,NY............
Originally Posted by burtonbl103
I have had no leak issues with mine
But i did notice that the valve train is louder with the headders and sounds similar to an exhaust leak
But i did notice that the valve train is louder with the headders and sounds similar to an exhaust leak
mine does also
Thread Starter
Racer
Joined: Jun 2004
Posts: 252
Likes: 0
From: Brevard NC
I had headers on C5 and didn't hear this. This sounds more like older cars I use to have headers on when the collector gasket between the header and exhaust pipe would burn out. I guess it may be normal, but just sounds like that. I will check at next event and see if can hear others. Thanks for suggestions
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Cruising
Joined: Jul 2006
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Just installed my kooks 1-3/4 headers on my 07 A6 and noticed the same sound. Thought that there was an exhaust leak from somewhere on the header. But once under the car I could hear each pulse of the exhaust in the collectors, and found no leaks. The factory exhaust manifolds are very heavy and thick, thus retaing most of the exhaust sound. The headers are thinner and lighter, and allow you to hear more pulse sound.
On a side note, did anybody that installed the kooks headers have trouble getting the tranny lines away from the headers? Kooks supplied a new bracket for the lines but did nothing. I bent them slightly and wrapped them in header wrap, to eliminate some heat transfer, any other suggestions?
On a side note, did anybody that installed the kooks headers have trouble getting the tranny lines away from the headers? Kooks supplied a new bracket for the lines but did nothing. I bent them slightly and wrapped them in header wrap, to eliminate some heat transfer, any other suggestions?
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by SilverLSGUN
Just installed my kooks 1-3/4 headers on my 07 A6.
On a side note, did anybody that installed the kooks headers have trouble getting the tranny lines away from the headers? Kooks supplied a new bracket for the lines but did nothing. I bent them slightly and wrapped them in header wrap, to eliminate some heat transfer, any other suggestions?
On a side note, did anybody that installed the kooks headers have trouble getting the tranny lines away from the headers? Kooks supplied a new bracket for the lines but did nothing. I bent them slightly and wrapped them in header wrap, to eliminate some heat transfer, any other suggestions?
i just wanna remind everyone to retorque all clamps, bolts, etc. after a couple of 50+ mile drives.
Team Owner
Joined: Jan 2004
Posts: 38,772
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From: Boston MA
St. Jude Donor '06-'07-'08,'12-'13
Originally Posted by Zig
thanks, you answered a question i had. i just installed kooks on my mn6 and for the life-of-me, i couldn't find where that darn 'bracket' went. guess the bracket is for automatics.
i just wanna remind everyone to retorque all clamps, bolts, etc. after a couple of 50+ mile drives.
i just wanna remind everyone to retorque all clamps, bolts, etc. after a couple of 50+ mile drives.
You need it to keep the lies away from the headders
They forgot mine in my box too
i had to call them and have them ship it !
