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Anyone Know anything about this Dynomax True Dual System

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Old Jan 28, 2003 | 03:40 AM
  #1  
85TPI400's Avatar
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From: San Diego, California
Anyone Know anything about this Dynomax True Dual System

http://cgi.ebay.com/ebaymotors/ws/eB...&category=6771
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Old Jan 28, 2003 | 08:56 AM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
https://www.thirdgen.org/techbb2/sho...hreadid=156108

Other than being about $100 over-priced, and a clapped-together, restrictive, no-ground-clearance system - What did you want to know about it?
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Old Jan 28, 2003 | 12:20 PM
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Its non mandrel bent 2 1/4" and it would be horrible for flow. I looked into it at one time, i had them send me a diagram of how the exhaust is run. The exhaust seriously makes 90* corners and flattens in some spots. You can buy the pipe kit from Jegs or Summit for $125 and two mufflers for 60 bucks, that kit on there is a ripoff.
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Old Jan 28, 2003 | 05:02 PM
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From: Carlisle, PA
Attached Thumbnails Anyone Know anything about this Dynomax True Dual System-dynomax-dual-exaust-kit  
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Old Jan 29, 2003 | 08:22 PM
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From: lindenhurst, new york
It doesnt look like the pic. here is a pic i got from Dyno max
Shaun
Attached Thumbnails Anyone Know anything about this Dynomax True Dual System-qqq.jpg  
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Old Jan 29, 2003 | 08:31 PM
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From: Monticello, IN USA
Car: 1991 Z-28
Engine: 350
Transmission: T-5 (gonna buy the farm)
Not exactly true duals, but it gets the job done.
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Old Jan 29, 2003 | 11:50 PM
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Momar's Avatar
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From: Decatur, Illinois
Originally posted by johnsjj2
Not exactly true duals, but it gets the job done.
Depends on your definition of true duals. It does have 2 pipes all the way back and has 2 mufflers, but is on the same side of the car. The thing is it is still only 2.25 non mandrel bent pipe. If it was mandrel bent it may be worth it to some people but in my opinion I dont think anyone should go for a piece of crap like that.

Ben
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Old Jan 30, 2003 | 12:44 AM
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five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If that's really what it looks like, then it's better than what was described in Summit - and I'll grab the catsup and dig into my plate of crow.

Dual 2.25" is adequate for most engines up through fairly healthy 350s (the factory dual cat system was 2.25", and added 10 hp over single 3" cat system). The Dynomax headers are still only 1-1/2" primaries, though, which would be restrictive on a 350 turning over 5000 RPM (but still better than factory manifolds). And, if not mandrel bent, would be more restrictive than a mandrel bent single 3" system.

85TPI400, you live in San Diego, right? It doesn't look like there is any provision for cats, and no mention of A.I.R. or O2 sensor on the headers. Those things could be worked around (graft two cats in the stock location, add A.I.R. pipes and O2 sensor fitting).
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Old Jan 30, 2003 | 06:11 AM
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85TPI400's Avatar
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From: San Diego, California
Thanks for the input,
I was just wondering what people knew about it! If I ever did use it I would have to use dual cats or single cat into a y pipe than to it to stay legal. I already have hooker headers and I have deceided to go with the Hooker cat back, unless anyone had something great to say about this system.
Thanks again,
Tony
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