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Old 04-17-2008, 12:20 PM   #1
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Post your True Dual setup here

Thought we could make one big thread for true duals and maybe get a moderator to sticky it.

Keith from Extreme Exhaust in Winnipeg made mine for me.

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A big thanx to Keith from Extreme Exhaust who was up till 1am last night fabricating the exhaust.

Its a 93 Camaro with billet custom made centre exit tips and SLP SS bumper. All mandrel bent.

Videos:

http://members.shaw.ca/velvet_hammer/Idle.wmv

http://members.shaw.ca/tallc00l1/Drive.wmv
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'93 Z28 (awaiting a new powerplant)
'06 Lexus IS350 Pics of my 3" duals My T-top conversion guide
R.I.P. Adam Reams aka Reamo04
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Old 04-17-2008, 01:37 PM   #2
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Looks like really nice, but what kind of ground clearance do you have with those mufflers? Also, what kinda mount do you have on your driving clip? Thats pretty cool
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Old 04-18-2008, 01:01 AM   #3
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Quote:
Originally Posted by greenday3437 View Post
Looks like really nice, but what kind of ground clearance do you have with those mufflers? Also, what kinda mount do you have on your driving clip? Thats pretty cool
Mufflers clear the highest speed bumps. I scrape them a bit on my parents' very steep driveway. Other than that no where else in the city. My LCA relocation brackets are lower than my mufflers.

Mount is for a Bullet cam. http://www.bulletcam.com/

I bought it from Fasttoys.

http://fasttoys.net/shop/index.php?c...ed0e95173d6d47
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'93 Z28 (awaiting a new powerplant)
'06 Lexus IS350 Pics of my 3" duals My T-top conversion guide
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Old 04-18-2008, 03:59 AM   #4
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My 3" True Duals:


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Old 04-23-2008, 08:07 AM   #5
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here's mine
started with a universal Xpipe from summit...3" all the way...with magnaflow 4x9s

did all the fab work on my back in the driveway with handtools. then had it welded up at a shop.

straight pipes:

with magnaflows...same camera position...just slipped the mufflers on.


drivers flange so it would mate to the flowtech headers (they tuck up high)


whole setup


from behind...drivers side hangs a bit lower since i had to have it welded in a hurry...Hurricane Wilma was coming in 3 days!!
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Old 04-23-2008, 09:27 AM   #6
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My detailed setup: http://www.lt1engine.com/tech/how-to...duals-exhaust/

Last edited by luckyou03; 05-15-2008 at 01:00 AM.
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Old 05-07-2008, 08:30 PM   #7
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Ok here's mine. I've got Pacesetter longtubes going into hi-flow cats (not gutted, sorry to disappoint), into a custom x-pipe and dumped in front of the axle through a couple of Magnaflow 4X9's with turndowns. A shop in the Raleigh area did it for me for a decent price and it turned out sounding really good I think.

This one shows the headers hooking up to the cats I believe...
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Annnnd this is a little deceiving of the ground clearance, but it isn't too bad...3" pipes all the way..
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This is the same side, from a slightly lower angle...
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And here's the dumps!
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Lemme know what you think
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Old 05-14-2008, 10:27 PM   #8
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Here's a couple more for anyone interested!

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Here's a sound clip!

http://s248.photobucket.com/albums/g...t=DSCN0606.flv
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Old 07-23-2008, 02:57 PM   #9
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just did up mine yesterday...

Props go out to Speedway Muffler in Upland, CA. Got 2.5" pipeto about 2/3 of the way down into a pair of resonators and then into 1 chamber Flowmaster Racing mufflers and then 3.5 inch chrome tips. Sounds much quieter than my 80 Series Flomaster that I had, but it sounds a lot more muscle and less loud

camaron

ps how can I post pics?
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Old 11-11-2008, 08:01 PM   #10
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No H or X pipe in this set up. Id say we have about 3 inches of clearence.
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http://s304.photobucket.com/albums/n...t=100_0599.flv

Sorry about the sound, its hard to get a camera to do good on an exhaust when so much air is blowing in the mic. THe lower your volume the better you can hear it. Sorry about the bright reverse light also, I put it in R so people could hear what it would sound like at a stop light etc. I think I took it up to 6500~ rpms. Appears to be rich at WOT.
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Old 04-05-2009, 07:55 AM   #11
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Summit 2.5 "universal x-pipe system" Direct bolt on to my Jet Hot Lt's. No cutting at all. Two hangers from Autozone bolted right up the the two holes for the rear seat belts. I also used some turn downs that I bought from Jegs which are not show in the pics. I clamped it all together then drove it to a muffler shop to have it welded for $50.00.
I think I have about $300 into it. Hard to beat.

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Last edited by PoorMan; 04-05-2009 at 07:59 AM.
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Old 04-22-2009, 08:52 PM   #12
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I'll edit this post and add pics one I finish painting the tailpipes flat black.

This exhaust is 3" Mandrel bent, over the axle with X-pipe and Hooker Aerochamber mufflers.
Excellent ground clearance and sound.
Driver's side muffler is in the stock location, passenger side is between TTop and Spare tire wells. (2" x 3" BFH work required)

Materials:
- 4 Dynomax/Hooker 3" Mandrel U bends (I have 4 left over in my for sale thread)
- 1 Jegs Universal 3" X-pipe kit
- 2 Hooker Aerochamber 3" in/out Mufflers

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Additional Pics at -> http://s38.photobucket.com/albums/e1...ual%20Exhaust/
Idle/Rev Vid at -> http://s38.photobucket.com/albums/e1...t=MOV001_1.flv
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Old 04-23-2009, 10:23 AM   #13
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James, Awesome work man.
Does it have any rasp in the 2K -3K RPM band like what we get with 3" single and the y-pipe?
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Old 04-23-2009, 10:39 PM   #14
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James, Awesome work man.
Does it have any rasp in the 2K -3K RPM band like what we get with 3" single and the y-pipe?
In the vid, you hear me rev to about 3500, pause, then continue on up to 6000 or so.
No real rasp that I can tell, although it would be hard to tell with this cam
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Old 06-29-2009, 07:03 PM   #15
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New video posted below

I have finally finished the true duals project for my 1995 Z28. The entire system is stainless steel and was made from Magnaflow mandrel bent pipes.

Here are the specs:
Flowmaster 3" to 2.5" reducer cones
Magnaflow stainless (5) J-bends, (4) L bends and (1) 45 degree bend
Woolf aircraft (2) 2.5" ultra tight radius L bends
Magnaflow dual in/out (internal X) muffler
Magnaflow X-pipe
Magnaflow stainless dual oval tips
Dynomax stainless cutouts
QTP electric cutouts
Lots of stainless Accu-seal clamps

I designed the cutout pipes to be easily removed and replaced with catalytic converters should the want or need ever arise. Takes about 30 minutes to do this. Also the whole thing can be easily removed rather easily just like a catback.

All pipes are stainless MIG welded and ground smooth for a seamless look. I polished the rear pipes exiting the muffler to a very shiny finish as well.

The exhaust sound is deep with absolutely no signs of rasp, popping or machine gun sounds in the 2K RPM range like what I had with the old Borla catback and ORY pipe. The sound volume at idle, as well as WOT, is similar to any other catback. Definitely not overly loud unless you open the cutouts. Maybe this is due to the Magnaflow X-pipe up front and the internal X-pipe in the muffler. The exhaust waves should certainly be balanced with this setup.

Ground clearance is outstanding with the lowest point being ~5" off the ground. This is on the pipes just before they go over the axle. I have yet to bang a pipe.

I also managed to reuse all the factory exhaust hanger points to secure the new system. I only had to custom make one new hanger, just in front of the axle as well as the pair at the tips. There are also stainless O2 bungs welded into each reducer for easy hookup to the wideband O2 at the dyno.

Thanks to everybody who offered help and advice with this project. I could not be happier with the final results.:chug:

Here are the pics of the system uninstalled:






Here are some installed pics:








Here is a shot from behind:


Click below for video:

Last edited by wrd1972; 02-17-2011 at 08:35 PM.
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Old 06-29-2009, 07:03 PM
 
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