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h-pipe low cost mod

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Old Dec 20, 2001 | 06:14 PM
  #1  
pauls's Avatar
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h-pipe low cost mod

HEY, ANYONE OUT THERE EVER SEE/TRY THIS MOD? IF SO, HOWS IT SOUND/WORK ETC. WAS IT WITH STOCK OR AFTERMARKET MUFFLER? NOTICE ANY PERFORMANCE DIFFERENCE? THANKS
Attached Thumbnails h-pipe low cost mod-ls2.jpg  
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Old Dec 21, 2001 | 02:08 AM
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
And this would.............?

AJ
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Old Dec 21, 2001 | 03:46 PM
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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
...make more noise, and reduce the coat hanger population by "1"...
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Old Dec 21, 2001 | 04:18 PM
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breathment's Avatar
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From: Bedford, Tx
Originally posted by five7kid
...make more noise, and reduce the coat hanger population by "1"...
haha
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Old Dec 22, 2001 | 04:57 AM
  #5  
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Not even in the right spot to do anything plus, using copper pipe fittings? wtf?
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Old Dec 22, 2001 | 06:38 AM
  #6  
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From: Kissimmee & FTLauderdale, FL
heheheheheheheh.
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Old Dec 22, 2001 | 11:57 AM
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From: Midwest City, Oklahoma
Car: '87 Z
Engine: 355 in the works
Transmission: 700R4
Serisouly though guys, what is this mod supposed to do? I'm confused cause this just came outta nowhere....
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Old Dec 22, 2001 | 12:10 PM
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Yeah..it would reduce coathanger population, and make more noise too. I found it on another web-sight and aint sure what its really suppose to do, however I do know that borla systems use this same idea with the different size restrictor plates for their crossflow set-ups. The guy who originally posted the photo used copper, i imagine because it was eazy .Never heard or saw this set-up before, am curious how it might sound (good or lousy) !
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Old Dec 22, 2001 | 12:40 PM
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Also, the photo shows wire holding the tube in place only until it gets braized /welded into place......you do not leave it loose and flopping around.
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Old Dec 22, 2001 | 03:22 PM
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From: CC, TX
Car: 1999 Yamaha Banshee
Engine: 379cc twin cyl 2-stroke stroker
Transmission: 6 spd manual
Axle/Gears: 14/41 tooth
its like a X-pipe it will balance the exhaust turbulence of the pipes giving you a small bump in power
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Old Dec 22, 2001 | 08:36 PM
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
The crossover pipe should be before the muffler not after. I did notice a difference in exhaust note(on my Camaro) after the installation of the crossover and I liked it!
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Old Dec 22, 2001 | 09:11 PM
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rezinn's Avatar
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From: California
I don't see how that could be anything like the borla system... or even what purpose it could serve. It looks to me like it would disrupt more than balance exhaust flow. Purely sound I'll bet, in that position at least.
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Old Dec 22, 2001 | 09:58 PM
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
I have heard a borla exhaust setup and it does not even come close to the great sound of my Camaros exhaust. Ofcoarse that si just my opinion.
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Old Dec 23, 2001 | 01:53 PM
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From: Blacksburg, VA
Car: '92 Rally Sport
Engine: LO3
Transmission: 700R4
what the hell is that supposed to do???? Are you trying to re-create a chambered exhaust? Typically that's done on a duel exhaust... the pipes are brought together in an X shape after the headers, but before the mufflers. It equalizes some pressure and makes for a better low rumble, but I've never heard of it being done after a cat on a single lead exhaust. I don't think it'd do any good.
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Old Dec 24, 2001 | 02:26 AM
  #15  
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Did I mention my crossover pipe in on a dual exhaust not single.
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Old Dec 30, 2001 | 06:50 AM
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From: Kissimmee & FTLauderdale, FL
After all that work, you've basically made an exhaust cut out. All that setup is doing according to the picture is bypassing the muffler so you have a direct flowing exhaust straight to the tip. its not really making a true x pipe, just rerouting the exhaust to bypass.

Save the trouble, spend 30 bucks and order a cutout. You can always cap the cutout too if it gets to loud for ya
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Old Dec 30, 2001 | 09:28 PM
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
I take back everything I said regarding this topic I am not to familiar with single exhaust.
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