Project "bad ass" TRUE DUALS underway. Please comment on my design.
#61
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I ran into a snag with the pipe that exits the muffler and goes to the passenger side tip. The Magnaflow J-bend has a 4" radius and that was going to run that pipe under the trunk well right at those round rubber plugs. The issue was the left side tip pipe and the right side tip pipe were going to be at different angles relative to the ground plus it just looked a bit funky being that low. What I needed was a tighter radius J-bend so that the pipe would tuck up in the cavity along side the muffler.
I called all around the country for hours on end looking for tight radius 2.5" mandrel bends and found a place called Woolf Aircraft in Michigan who helped me out. http://www.woolfaircraft.com/
These are the folks to call if you need tight radius Mandrel bends since they have the best Mandrel bender money can buy and is capable of making tighter turns than everyone else including stainless works and Burns.
I bought two L-bends at $80.00 shipped that have a 2.5" radius to make the new J-pipe going over to the passenger side and now the thing tucks up much higher right along side the muffler. This detour was expensive but the end results as seen in the pics have made it well worth it.
![](http://i140.photobucket.com/albums/r6/wrd1972/tdd3.jpg)
#63
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I came within a hair of putting chambered muffler on this setup like your GMMG. I opted for the Magnaflow to make it a little more quiet but I have the ability, built in to put them on if I want down the road if I choose.
#64
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It will go to the dyno late summer or early fall at the soonest. Nothing else other than the exhaust will have been changed so it should very interesting. I expect maybe 5-10RWHP which will get me much closer to the 400RWHP target. Who knows, maybe it will make more with the new cutout locations?
I came within a hair of putting chambered muffler on this setup like your GMMG. I opted for the Magnaflow to make it a little more quiet but I have the ability, built in to put them on if I want down the road if I choose.
I came within a hair of putting chambered muffler on this setup like your GMMG. I opted for the Magnaflow to make it a little more quiet but I have the ability, built in to put them on if I want down the road if I choose.
I had dual cutouts mounted where you do on my old Hooker setup and loved the sound, but they were a bitch to get to and I switched to stainless headers.
#66
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New pics:
![](http://i140.photobucket.com/albums/r6/wrd1972/xx1.jpg)
![](http://i140.photobucket.com/albums/r6/wrd1972/xx2.jpg)
![](http://i140.photobucket.com/albums/r6/wrd1972/xx3.jpg)
![](http://i140.photobucket.com/albums/r6/wrd1972/xx4.jpg)
![](http://i140.photobucket.com/albums/r6/wrd1972/xx5.jpg)
I was in the process of welding the pipes solid but ran out of shielding gas.![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
I decided to MIG the joints that cant be seen. The ones that can be seen will be nicely TIG'd afterall. The rear pipes that can be seen will also get mirror polished as well as the muffler.
There is still some more fitment to do WRT the tips placement.
Was looking to have it all done this weekend, but now I am at the mercy of the folks refilling my cylinder.
![](http://i140.photobucket.com/albums/r6/wrd1972/xx1.jpg)
![](http://i140.photobucket.com/albums/r6/wrd1972/xx2.jpg)
![](http://i140.photobucket.com/albums/r6/wrd1972/xx3.jpg)
![](http://i140.photobucket.com/albums/r6/wrd1972/xx4.jpg)
![](http://i140.photobucket.com/albums/r6/wrd1972/xx5.jpg)
I was in the process of welding the pipes solid but ran out of shielding gas.
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
I decided to MIG the joints that cant be seen. The ones that can be seen will be nicely TIG'd afterall. The rear pipes that can be seen will also get mirror polished as well as the muffler.
There is still some more fitment to do WRT the tips placement.
Was looking to have it all done this weekend, but now I am at the mercy of the folks refilling my cylinder.
#71
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Thanks for the compliments guys.
I have spent the last two days stainless MIG welding all the pipes (expect the rear visible ones) together. I then spent countless hours grinding the welds down and blending the seams so you cant see the joints. My right arm feels like it is going to rot and fall off from holding that damn grinder so long.
The rear pipes will TIG welded this week and all that will be left is to mount everything up and post some better pics of it installed and some sound clips.
Been working on this project nearly 2 months now. Almost done.
I have spent the last two days stainless MIG welding all the pipes (expect the rear visible ones) together. I then spent countless hours grinding the welds down and blending the seams so you cant see the joints. My right arm feels like it is going to rot and fall off from holding that damn grinder so long.
The rear pipes will TIG welded this week and all that will be left is to mount everything up and post some better pics of it installed and some sound clips.
Been working on this project nearly 2 months now. Almost done.
![Thumb](https://ls1tech.com/forums/images/smilies2/thumb.gif)
#73
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Not Corsa, I wanted dual oval tips and not round and the only ones I could find in 2.5" were some off of Ebay for $40 each:
http://cgi.ebay.com/ebaymotors/STAIN...Q5fAccessories
They look like good quality.
http://cgi.ebay.com/ebaymotors/STAIN...Q5fAccessories
They look like good quality.
#74
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Update:
Still need to get the two TIG welds done on the two tips pipes, but I decided to take it out for a spin anyway and experience the sweet music.
OMG I am loving the sound of the TD's through the Magnaflow muffler. It makes my previous Borla adjustable catback and ORY pipe sound like total ***.
The exhaust tone is so much smoother deeper tone without any of the crackle, popping and other garbage that I had before. There is absolutely ZERO rasp and machine gun sound in the light throttle 2-3k RPM range. There is no annoying drone at highway speed as well.
I then opened the dual cutouts. Wow that thing is stupid loud and sounds just plain off the charts sick. I cant wait to pull up next to some rice on a Friday night, Johnny Ricer will poo his pants. It is easily 3X louder that the Borla was wide open.
Just no comparison to the previous system period.
I will get some sound clips this weekend.
Still need to get the two TIG welds done on the two tips pipes, but I decided to take it out for a spin anyway and experience the sweet music.
OMG I am loving the sound of the TD's through the Magnaflow muffler. It makes my previous Borla adjustable catback and ORY pipe sound like total ***.
The exhaust tone is so much smoother deeper tone without any of the crackle, popping and other garbage that I had before. There is absolutely ZERO rasp and machine gun sound in the light throttle 2-3k RPM range. There is no annoying drone at highway speed as well.
I then opened the dual cutouts. Wow that thing is stupid loud and sounds just plain off the charts sick. I cant wait to pull up next to some rice on a Friday night, Johnny Ricer will poo his pants. It is easily 3X louder that the Borla was wide open.
Just no comparison to the previous system period.
I will get some sound clips this weekend.
![Chug! Chug! Chug!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_chug.gif)
#75
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Update:
Still need to get the two TIG welds done on the two tips pipes, but I decided to take it out for a spin anyway and experience the sweet music.
OMG I am loving the sound of the TD's through the Magnaflow muffler. It makes my previous Borla adjustable catback and ORY pipe sound like total ***.
The exhaust tone is so much smoother deeper tone without any of the crackle, popping and other garbage that I had before. There is absolutely ZERO rasp and machine gun sound in the light throttle 2-3k RPM range. There is no annoying drone at highway speed as well.
I then opened the dual cutouts. Wow that thing is stupid loud and sounds just plain off the charts sick. I cant wait to pull up next to some rice on a Friday night, Johnny Ricer will poo his pants. It is easily 3X louder that the Borla was wide open.
Just no comparison to the previous system period.
I will get some sound clips this weekend.![Chug! Chug! Chug!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_chug.gif)
Still need to get the two TIG welds done on the two tips pipes, but I decided to take it out for a spin anyway and experience the sweet music.
OMG I am loving the sound of the TD's through the Magnaflow muffler. It makes my previous Borla adjustable catback and ORY pipe sound like total ***.
The exhaust tone is so much smoother deeper tone without any of the crackle, popping and other garbage that I had before. There is absolutely ZERO rasp and machine gun sound in the light throttle 2-3k RPM range. There is no annoying drone at highway speed as well.
I then opened the dual cutouts. Wow that thing is stupid loud and sounds just plain off the charts sick. I cant wait to pull up next to some rice on a Friday night, Johnny Ricer will poo his pants. It is easily 3X louder that the Borla was wide open.
Just no comparison to the previous system period.
I will get some sound clips this weekend.
![Chug! Chug! Chug!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_chug.gif)
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
Dual cutouts are insanely loud...anything more then idle sounds like front row Nascar - instant headache
![Icon Lol](https://ls1tech.com/forums/images/smilies2/icon_lol.gif)
#78
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you really lived up to the title of this post. this has to be one of the nicest true dual systems i have ever seen. plus the e cutouts are a killer addition. great work. a system like this done by a shop would cost a lot of $$$$.
#80