2nd Generation Specific 1986-1992 Discussion

True Dual Exhaust

Old 02-27-2004, 11:31 AM
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In the past I have been looking for a True Dual setup for my exhaust because I think thats those are the best performance wise. So getting beyond that point I was wondering if anyone has ever built their own. Meaning either made their own true dual(TD) manifold and the cat-back minus the cat because I live in Mich and we do not have strict regulations on emisions. If anyone has done either of these I would greatly appreciate some plans or tips or where I could find a cheap kit because I have seen them before but were all costing over 1K.

So thanks!

Cort
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Old 02-27-2004, 11:43 AM
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I don't think you'll find a cheap kit. There's a car for sale in Iowa City with a true dual setup. $800 w/ a blown engine.



I think it'll be difficult to pass emmissions without cats if possisble? Maybe someone should chime in that actually has this setup though.
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Old 02-27-2004, 11:53 AM
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Yea I know I was searching for a while and I was mostly just looking for a TD header. The rest I can piece together myself.
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Old 02-27-2004, 11:54 AM
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Also emisions are not a problem as long as the car isnt too loud.
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Old 02-27-2004, 12:10 PM
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I went the cheap route:

I bought the Mazdatrix header kit ~$90 shipped (RB flange & mandrel bends).

Then had a local shop weld up the rest using the origonal rear flanges & tips.

The 2 sliencers, 2 bomb mufflers, pipe & labor to weld it all up came to ~$240.



Check out the link to the pictures & sound bite in my sig below.
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Old 02-27-2004, 12:25 PM
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Old 02-27-2004, 12:31 PM
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Here is a link to a video clip of that setup form the inside.



<2MB video clip>
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Old 02-27-2004, 12:58 PM
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I did a similar thing as sureshot. It sounded like ****, and made nowhere near the power of my collected exhaust. What a waste. True duals have to be the most over-hyped and under performing exhaust I have ever seen.
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Old 02-27-2004, 01:15 PM
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Originally Posted by mazdaspeed7' date='Feb 27 2004, 01:58 PM
I did a similar thing as sureshot. It sounded like ****, and made nowhere near the power of my collected exhaust. What a waste. True duals have to be the most over-hyped and under performing exhaust I have ever seen.
wow, I'm glad I went single, good to know I'm not missing anything.
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Old 02-27-2004, 02:56 PM
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The sound depends much on the pre-silencers.

Play the sound link in my sig to see what I mean.



Yes- A properly tuned collected header is better, but a full dual is more forgiving if you're off a bit.



I happen to like the "growl" under load, of the alternating exhaust pulses from each tip.
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