Entire different way to dual exhaust.
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From: Rockford, MI
Car: 1983 Pontiac Trans AM
Engine: 355 chevy
Transmission: 700R4 Built
Axle/Gears: Built 10 bolt 3.73 gears
Entire different way to dual exhaust.
Ok guys,
I have been thinking a lot about how I am going to to true dual exhaust because my car has stock size tires on it and I really don't want to spend the money for oval tubing.
Now the idea that my brother came up with would be get some round mufflers that go directly behind the headers and then just run the usual tubing back to dump before the rear tires. Do you think this could work? I am going to have to check the clearance but it seems like a better idea than trying to tuck two full size mufflers up under the rear seats and still have ground clearance.
lemme know!!!
I have been thinking a lot about how I am going to to true dual exhaust because my car has stock size tires on it and I really don't want to spend the money for oval tubing.
Now the idea that my brother came up with would be get some round mufflers that go directly behind the headers and then just run the usual tubing back to dump before the rear tires. Do you think this could work? I am going to have to check the clearance but it seems like a better idea than trying to tuck two full size mufflers up under the rear seats and still have ground clearance.
lemme know!!!
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Joined: Aug 2005
Posts: 3,004
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From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
Thats the way my old setup was when i first got my car and it wasnt really too bad for ground clearance, once in a while it would drag on a speedbump but not too bad. That was with 2.25" pipe and bottles which were about 3" diameter.
Im going to try a 2.5" system the same way this year because the cops dont like my straight pipes that are on there at the moment
Im going to try and tuck it up in there a bit but theirs not much of a place it can go!
Im going to try a 2.5" system the same way this year because the cops dont like my straight pipes that are on there at the moment

Im going to try and tuck it up in there a bit but theirs not much of a place it can go!
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Joined: Jun 2005
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From: Maine
Car: 1989 Formula 350
Engine: L98
Transmission: 700-R4
I asked the same question a couple days back. I have an 89 bird and I want to do the same exact exhaust. People have said there is absolutely no room, and I have heard there is room from people who have done it. Im getting pics of somebodys exhaust soon and ill post them if I can.
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Joined: Oct 2004
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From: Rockford, MI
Car: 1983 Pontiac Trans AM
Engine: 355 chevy
Transmission: 700R4 Built
Axle/Gears: Built 10 bolt 3.73 gears
Do you have any pictures of the front of the car??? to see how the rest of the exhaust was routed.
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Thread Starter
TGO Supporter
iTrader: (4)
Joined: Oct 2004
Posts: 300
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From: Rockford, MI
Car: 1983 Pontiac Trans AM
Engine: 355 chevy
Transmission: 700R4 Built
Axle/Gears: Built 10 bolt 3.73 gears
hmmm thirdgenrs did you notch the trans x member or something? Kinda hard to tell.
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From: St. Peters, MO
Car: 90 RS Camaro
Engine: 383L98
Transmission: t-56
Axle/Gears: 10bolt 3.42/posi
Originally Posted by eXesiv|83ta
hmmm thirdgenrs did you notch the trans x member or something? Kinda hard to tell.
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Joined: Sep 2000
Posts: 6,775
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Originally Posted by eXesiv|83ta
Do you have any pictures of the front of the car??? to see how the rest of the exhaust was routed.
It's not much different than the way thirdgenrs has his routed.
Last edited by deadbird; Mar 29, 2006 at 10:48 PM.
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Joined: Mar 2005
Posts: 85
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From: Leesburg, Ga
Car: 89 Firebird
Engine: 355
Transmission: 700
Looks like it is about time to fix that pinion seal.
Here in Ga you can't dump in front of the axle. You have to go all the way back or out the side. On a truck it only has to go to the end of the cab.
Got a ticket when I had my 77 bird for this.
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Hey thirdgens, Do you have a problem with too much heat on the starter? It looks a little close
Here in Ga you can't dump in front of the axle. You have to go all the way back or out the side. On a truck it only has to go to the end of the cab.
Got a ticket when I had my 77 bird for this.
----------
Hey thirdgens, Do you have a problem with too much heat on the starter? It looks a little close
Last edited by kyle folds; Mar 29, 2006 at 10:47 PM. Reason: Automerged Doublepost
Joined: Jun 2002
Posts: 13,576
Likes: 30
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Originally Posted by kyle folds
I did sorta upset the cop a little but in Georgia you are not supposed to do it, Something about exaust fumes getting in the car

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Joined: Mar 2005
Posts: 85
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From: Leesburg, Ga
Car: 89 Firebird
Engine: 355
Transmission: 700
Originally Posted by mw66nova
that's why you "yes sir" and "no sir", so they don't start getting stupid and look under the car...i've been running dumps on my car for 3 years now.
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From: Davenport, Iowa
Car: Still a 3rd Gen
Engine: 450HP 355
Transmission: TH350
Axle/Gears: 9" with 4.11's
Originally Posted by 84z28350
Heres a pic i jacked off here a few months ago, basically what were doing except we dump infront of axle...


That's exactly how mine is, with the stock tires in the front i had just under 5" of ground clearance with all stock springs (At the collectors).
It should be off the jack stands tonight, i'll double check that tho.
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From: St. Peters, MO
Car: 90 RS Camaro
Engine: 383L98
Transmission: t-56
Axle/Gears: 10bolt 3.42/posi
Originally Posted by bigmaciroc
hey thirdgener, my computer has a real dark monitor, do u have cats of mufflers at all?
no i dont. and i have magnaflow race bullets. Thread
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