LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Whats your custom true duals setup like?

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Old Dec 26, 2010 | 10:56 AM
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Default Whats your custom true duals setup like?

Yes, i'm aware that i post alot of threads but i need some opinions and ideas for my new exhaust. I was going to get a hooker aerochamber and call it a day but i want to go true dual. However i dont want to dump it at the axle and let it be, id like to run it up over or under the axle. I've been seeing people are running both pipes up and over only they are running side by side over the passenger side of the axle, is there a reason for that? I was considering under the axle as well but living in PA im a little worried about ground clearence. I'd be doing the x-pipe but the shop will be finishing off the exhaust out the back. Also if i could see some pictures thatd be great, thanks!
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Old Dec 26, 2010 | 11:28 AM
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sometimes the search bar is your best friend.. still the same body style, bet there are some lt1 guys in there
https://ls1tech.com/forums/generatio...-pics-too.html
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Old Dec 26, 2010 | 12:12 PM
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Ok so ive been looking and im considering under the axles but some people say the axle hits it and causes it to move the exhaust whenever the car goes over a bump?
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Old Dec 26, 2010 | 02:47 PM
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I have under axle nothing hits when driving but somtimes my muffler may touch if its large bump in the road ( not a big deal) but make sure you make it so it can unbolt your pipes from the mufflers so if you have to drop the rear out you dont have to take the entire setup off .
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Old Dec 26, 2010 | 03:38 PM
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under the axle is just retarded IMO,...people run 2.1/4 maybe 2.1/2 both over the PS because there isn't enough room around the upper bracket of the DS PHR ..now you can clearance the upper PHR either side and make either fit better OR you can get a PHR relocation kit and run duals with enough room for3" out the back (what i will end up doing) ...heres the part ------->http://www.umiperformance.com/catalo...roducts_id=289
heres some shots of mine currently...i'm going to get rid of the muff's for resonators "bullets" because i want more ground clearance and i refuse to beat in my rear seats floor pans
michael
Attached Thumbnails Whats your custom true duals setup like?-rear-diff2.jpg   Whats your custom true duals setup like?-truduals-front-pic.jpg   Whats your custom true duals setup like?-truduals-rear-pic.jpg  

Last edited by defaultexistence; Dec 26, 2010 at 03:54 PM.
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Old Dec 26, 2010 | 03:41 PM
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Originally Posted by Ocala93TA
I have under axle nothing hits when driving but somtimes my muffler may touch if its large bump in the road ( not a big deal) but make sure you make it so it can unbolt your pipes from the mufflers so if you have to drop the rear out you dont have to take the entire setup off .
Id like to have the borla XR1 mufflers before they come out of the bumper. I almost feel wrong running exhaust under the axle. Is it real noticable when someones behind you?
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Old Dec 26, 2010 | 03:44 PM
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Originally Posted by defaultexistence
under the axle is just retarded IMO,...people run 2.1/4 maybe 2.1/2 both over the PS because there isn't enough room around the upper bracket of the DS PB ..now you can clearance the upper PB either side and make either fit better OR you can get a PB relocation kit and run duals with enough room for3" out the back (what i will end up doing) ...heres the part ------->http://www.umiperformance.com/catalo...roducts_id=289
I didnt understand anything you said because you abbrieviated everything
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Old Dec 26, 2010 | 03:47 PM
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Originally Posted by defaultexistence
under the axle is just retarded IMO,...people run 2.1/4 maybe 2.1/2 both over the PS because there isn't enough room around the upper bracket of the DS PB ..now you can clearance the upper PB either side and make either fit better OR you can get a PB relocation kit and run duals with enough room for3" out the back (what i will end up doing) ...heres the part ------->http://www.umiperformance.com/catalo...roducts_id=289
Got you now, you meant panhard bar. I'm going to take it to my exhaust shop to see what he says he did a real good job on my dads 05 Ram dually, which was said to be "impossible" to run duals on without some big kit you had to buy and he did it no kit required. I only plan on running 2.5" so maybe i wont need a PB relocation kit, thanks for the info!
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Old Dec 26, 2010 | 03:52 PM
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I have had a 2.5"X pipe,1ch. Flows under the axle for many retarded years now!
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Old Dec 26, 2010 | 03:53 PM
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huh,OK my mistake...... -------> https://ls1tech.com/forums/lt1-lt4-m...ml#post2682533
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Old Dec 26, 2010 | 03:56 PM
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Originally Posted by defaultexistence
Panhard Bar..i got it
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Old Dec 26, 2010 | 04:03 PM
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Originally Posted by 96lt1m6
I have had a 2.5"X pipe,1ch. Flows under the axle for many retarded years now!
cool...to each their own like i said IMO.. in an emergency ,will the rear end push/torq on the exhaust & manifolds if you have to jack a tire up on the side of the road to change it? if you catch a dip or pothole in the road that causes air/lift on the car doesn't the rear end and exhaust collide?
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Old Dec 26, 2010 | 04:57 PM
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Originally Posted by defaultexistence
cool...to each their own like i said IMO.. in an emergency ,will the rear end push/torq on the exhaust & manifolds if you have to jack a tire up on the side of the road to change it? if you catch a dip or pothole in the road that causes air/lift on the car doesn't the rear end and exhaust collide?
Default did you get a quote from a shop to run them up over the axle or do you have your own exhaust bender. By the way heres a pic of 2.5" over the axle piping without a PB relocation i got from lt1engine.com
Attached Thumbnails Whats your custom true duals setup like?-lrg-458-800_00552853-1-.jpg  
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Old Dec 26, 2010 | 05:27 PM
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What do you guys recommend for mufflers? Im looking at Magnaflow bullets right now, but im not sure
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Old Dec 26, 2010 | 06:30 PM
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Originally Posted by l 95 Trans Am l
Default did you get a quote from a shop to run them up over the axle or do you have your own exhaust bender. By the way heres a pic of 2.5" over the axle piping without a PB relocation i got from lt1engine.com
^^^^forget lowering or cornering hard right with that setup you pictured....a quote for what?
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Old Dec 26, 2010 | 06:44 PM
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Here's another variant. I ran mine out the sides behind the doors. Makes it very easy to service the gas tank and rear suspension. I think it looks pretty good. The one photo shows where the tips come out. The exhaust is custom fabbed 3" stainless with a custom X thru the dip in the Spohn cross member. Mufflers are Edelbrock SDT 304 stainless...

--Alan
Attached Thumbnails Whats your custom true duals setup like?-undercar1.jpg   Whats your custom true duals setup like?-undercar2-2-.jpg   Whats your custom true duals setup like?-undercar3.jpg   Whats your custom true duals setup like?-sideshot-3-.jpg  
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Old Dec 26, 2010 | 07:22 PM
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Originally Posted by defaultexistence
^^^^forget lowering or cornering hard right with that setup you pictured....a quote for what?
Then how do people get away with over the axle?? And quote for the over the axle at a shop, or do you have an exhaust bender?
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Old Dec 26, 2010 | 08:02 PM
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the problem isn't with OVER the axel..the picture you posted ,look at the passanger pipe and how it passes thru the middle of PHR and the upper PHR that area is like scissors it'll work but it will get clamped on if hitting any hard dip,bumps,potholes or cornering hard...if you lower it ,the PHR will be all over the pipe constantly
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Old Dec 26, 2010 | 08:52 PM
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Originally Posted by defaultexistence
the problem isn't with OVER the axel..the picture you posted ,look at the passanger pipe and how it passes thru the middle of PHR and the upper PHR that area is like scissors it'll work but it will get clamped on if hitting any hard dip,bumps,potholes or cornering hard...if you lower it ,the PHR will be all over the pipe constantly
Now i see what you mean. SO theres no way to route it over the axle without the PHB relocation kit? Keep in mind im running 2.5" due to the fact that its only a bolt on car
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Old Dec 26, 2010 | 09:15 PM
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You can fit dual 3 inch over the axle with no relocation kit if you find a good enough shop. 2.5 inch should be no problem for any shop
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