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how far back do true duals go?

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Old 12-25-2004, 12:57 AM
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Default how far back do true duals go?

I am lookin at purchasing a tsp true duals set up 3 inch, with borla 18 inch bullets. How far back towards the rear axle does this set up reach? Is it safe to put exhause tubing under the rear axle due to the fact that the axle needs room to move up and down depending on road condition? I was thinking that the duals dumped before reaching the axle, but I dont know for sure, I am also assuming that 3 inch is too big to go over the axle. Any info on this setup would be greatly appreciated. I am close to purchasing, but I want to make sure I know everything now, so as to advoid agrivating suprises later.

Thanks

Nathan
Old 12-25-2004, 01:28 AM
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they dump just before the axle at the point where the floor board goes up into the wheel well. 3" over the axle is tough, i havnt heard of it without relocating the PHB (i think thats what it was), under the axle isnt to bad, it just dosnt look as good.

Just get the TSP duals and be happy!!!
Old 12-25-2004, 02:02 AM
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well, go with TSP's setup if you want. I'd rather spend the extra $80-150 and get a custom setup by Lane. TSP is a great company and they have great products, but Lane is the man when it comes to exhaust setups. Plus he's right down the street from me
Old 12-25-2004, 08:26 AM
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TSP Duals



Nuff said
Old 12-25-2004, 10:54 AM
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I put 45º - 90º - 45º bends going under the axle so that it goes out to the sides and tucks just behind each wheel. The exhaust comes back towards the center so if you dont mind doing a makeshift center mount exhaust tips, it works perfectly. The bottom of the bends hang down just about as much as the front air dam. I just had winter tires put on and the axle just kissed the bends when it was fully extended, but it didnt bend the exhaust out of recognition. And even if it does, the bends will just "rotate" a little, assuming that you used clamps rather than welds. I really like the setup and it dosnt scrape. Works really well.
Old 12-25-2004, 02:20 PM
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Originally Posted by natronathon
I am lookin at purchasing a tsp true duals set up 3 inch, with borla 18 inch bullets. How far back towards the rear axle does this set up reach? Is it safe to put exhause tubing under the rear axle due to the fact that the axle needs room to move up and down depending on road condition? I was thinking that the duals dumped before reaching the axle, but I dont know for sure, I am also assuming that 3 inch is too big to go over the axle. Any info on this setup would be greatly appreciated. I am close to purchasing, but I want to make sure I know everything now, so as to advoid agrivating suprises later.

Thanks

Nathan
If you want dual 3" over the axle, BMR makes an upper panhard brace specifically for this setup. Looks better than that flimsy stamped steel brace, too.

http://www.bmrfabrication.com/phr/Uphr-installed2.jpg
http://www.bmrfabrication.com/phr/Uphr-installed.jpg
http://www.bmrfabrication.com/phr/UpperPHR.jpg
Old 03-02-2005, 05:49 AM
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Even with the upper panhard brace do you think you can get 3 inch pipes over the driver side of the axle. I currently have 2.5 inch pipes going over each side of the axle.
Old 03-02-2005, 10:26 PM
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wasn't corsa working on a full TD system?
Old 03-02-2005, 11:05 PM
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how come noone can make a TD out the back for under 600 bucks? i know ive seen some people get their pipes out the back from the dumps for like an extra 150 or so. I wouldnt mine spending like 700 bucks or so on a TD out the back. but everyone in the NE wants like 1000-1200!!! thats nuts!
Old 03-03-2005, 12:16 AM
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Originally Posted by 92SilverSHO
how come noone can make a TD out the back for under 600 bucks? i know ive seen some people get their pipes out the back from the dumps for like an extra 150 or so. I wouldnt mine spending like 700 bucks or so on a TD out the back. but everyone in the NE wants like 1000-1200!!! thats nuts!
Because these cars were never designed to have true duals done out the back, and to make a kit, that will work well in mass production, is going to be difficult. To be done correctly it really needs to be done custom, which is why it costs so much. You should be able to get a reputable exhaust shop to do a setup, at least under the axle, for less than $1000. Mine dumps under the axle and I think it is fine, thing again it doens't really matter here about where the exhaust comes out, while it does in some areas.
Old 03-03-2005, 01:28 AM
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Old 03-03-2005, 03:00 AM
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Hugger1975 that's some great clearance you have there. I hope to have the same next week.
Old 03-03-2005, 11:35 AM
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bassani is the one with a tru dual system out now, all the way out the back, a little different then the other true dual systems, but its a nice option. thread about ithere
Old 03-03-2005, 12:02 PM
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Originally Posted by ZR2877
Hugger1975 that's some great clearance you have there. I hope to have the same next week.

i have not touched the stock springs/shocks at all.


seems there is room to kill my 4x4 mod.........

can prolly go .75-1' drop still




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