Ultimate True Dual Exhaust?
Thread Starter
Joined: Sep 2004
Posts: 6,814
Likes: 3
From: Hou. TX.
Ultimate True Dual Exhaust? I'm close to getting headers for my 99 TA and was wanting to design the exhaust from the ground up. I think I'm going to try something I've never seen before. I want to go from the headers to the cats (assuming I use them) and then straight out to the sides. I think some boom tubes would work well. There is a metal lip that hangs down where the body seams meet at the outer sides and it can be bent over. If the boom tubes are only 1" thick it should have good ground clearance.
Something like this:
The boom tubes look something like this:
Do you guys think this would sound good?
Something like this:
The boom tubes look something like this:
Do you guys think this would sound good?
Thread Starter
Joined: Sep 2004
Posts: 6,814
Likes: 3
From: Hou. TX.
It shouldn't be too loud with the cats.
This is my current exhaust. Stock manifolds and cats, but a very short pipe. This sounds about the same as when I had the full exhaust and had an electric cutout in the same location.
I think with it dumping under the car it adds extra noise as the whole car body vibrates.
With headers and cats plus the exhaust exiting on the outer edge of the car (not under it) I think it would be about the same as now. I know if I left the cats off it would be REAL loud. I may try it and see. It's going to be a big experiment to find out what sounds best.
This is my current exhaust. Stock manifolds and cats, but a very short pipe. This sounds about the same as when I had the full exhaust and had an electric cutout in the same location.
I think with it dumping under the car it adds extra noise as the whole car body vibrates.
With headers and cats plus the exhaust exiting on the outer edge of the car (not under it) I think it would be about the same as now. I know if I left the cats off it would be REAL loud. I may try it and see. It's going to be a big experiment to find out what sounds best.
Last edited by JasonWW; May 14, 2007 at 03:13 AM.
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Thread Starter
Joined: Sep 2004
Posts: 6,814
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From: Hou. TX.
Originally Posted by MeentSS02
This has been done before...if you search around, you'll find more info.
The only thing close I've seen is guys with passenger side exiting exhausts which isn't the same thing.
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Verdad Gallardo Thread Starter
Joined: Sep 2004
Posts: 6,814
Likes: 3
From: Hou. TX.
One other thing, a more traditional type of exhaust can also be run through a quiet muffler and I can use electric cutouts to direct the flow. That way I can make it quiet for those special occassions.
Thread Starter
Joined: Sep 2004
Posts: 6,814
Likes: 3
From: Hou. TX.
Originally Posted by SladeX
cats do squat for sound...
I tried cats with true duals and dynomax bullets...
it scared the **** out of any nearby person that I happened to throw a rev at...
I tried cats with true duals and dynomax bullets...
it scared the **** out of any nearby person that I happened to throw a rev at...
If need be I can forget the cats and instead run some small mufflers.
Spin Tech Race Mufflers are very compact and durable. They measure 2 3/4" X 8" X 13". Construction is welded steel with no packing material to blow out. They are approved for use in the USAR Hooters Pro-Cup Series, meet track sound requirements and can even be used in street applications. All outlets are 2 1/2" X 4" oval. the inlets are 2 1/2" X 4" oval or 3" round. These mufflers have excellent flow numbers and are quietest when under load or high exhaust flow.
I do want it loud BTW, just not so loud it bugs me all the time.
I saved this link with some pics. They're in this thread:
https://ls1tech.com/forums/showthrea...ght=boom+tubes
I plan on doing something similar myself once I get some longtubes. I want to run a y pipe out the passenger side into a boom tube. Just run cats without any mufflers and see how it sounds. Then go from there.
EDIT: The reason I saved this link is I wanted to do something similar when I got a LS1 car. I don't think it would look right on a formula without the TA sideskirts though? Opinions?
PS: That first gen Camaro is sick. I'm going to have to do something like that if I can't find any of the exact SLP CME tips I want.
https://ls1tech.com/forums/showthrea...ght=boom+tubes
I plan on doing something similar myself once I get some longtubes. I want to run a y pipe out the passenger side into a boom tube. Just run cats without any mufflers and see how it sounds. Then go from there.
EDIT: The reason I saved this link is I wanted to do something similar when I got a LS1 car. I don't think it would look right on a formula without the TA sideskirts though? Opinions?
PS: That first gen Camaro is sick. I'm going to have to do something like that if I can't find any of the exact SLP CME tips I want.
Thread Starter
Joined: Sep 2004
Posts: 6,814
Likes: 3
From: Hou. TX.
That car is pretty close to what I'm talking about, but I want the exhaust to shorter and exit closer to the front wheels. A real leg burner! 
When they are mounted near the rear tire like that they would get crushed every time I drive onto a lift, which I do often.
When they are mounted near the rear tire like that they would get crushed every time I drive onto a lift, which I do often. 
Originally Posted by boostedbuford
Is this what your talking about??
Edit-Also PM Black01ss I think he has a very similar set-up w/boomtubes
Edit-Also PM Black01ss I think he has a very similar set-up w/boomtubes
Thread Starter
Joined: Sep 2004
Posts: 6,814
Likes: 3
From: Hou. TX.
Originally Posted by Beaflag VonRathburg
Those pictures are of the car in the air on a lift. They aren't getting crushed.
When they are mounted near the rear tire like that they would get crushed every time I drive onto a lift.
Originally Posted by 02NBMWS6
this idea is definitely not the "ultimate" true dual exhaust
This is actually much closer to what I have in mind except he dumped it under the car instead of using the thin boom tubes. I will probably go this direction and see how it sounds before trying to exit it out the side.
https://ls1tech.com/forums/generation-iii-external-engine/502513-magnaflow-s-off-kook-s-headers.html
Last edited by JasonWW; Jun 1, 2007 at 10:03 AM.
Launching!
Joined: Nov 2001
Posts: 246
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From: Plano, TX
Originally Posted by JasonWW
I'm close to getting headers for my 99 TA and was wanting to design the exhaust from the ground up. I think I'm going to try something I've never seen before. I want to go from the headers to the cats (assuming I use them) and then straight out to the sides. I think some boom tubes would work well. There is a metal lip that hangs down where the body seams meet at the outer sides and it can be bent over. If the boom tubes are only 1" thick it should have good ground clearance.
Do you guys think this would sound good?
Do you guys think this would sound good?
Go here:
http://www.ls1sounds.com/custom.htm
Click on Boom tube, NataSS (430rwhp dyno)
Not sure if he has cats or not (probably not)
Sounds Badass, but loud as hell!
