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04-03-2004, 02:43 PM
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#1
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Registered User
Join Date: Jun 2001
Location: College Station, Austin, TX
Posts: 292
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True Dual People
I am trying to decide how I am going to do my whole set up with exhaust. I know I am going to buy headers, and want to do the true duals cause of sound and cost. My only problem would be when inspection comes around. Do any of yall use cats with a true dual set up? I want to have a shop fab me up one where I can exchange in an offroad pipe and cats, is this possible?
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1999 Onyx Black Z28 M6 T-top
Fikse FM-5's
Intake/Exhaust
342 RWHP 354 RWTQ
My Car
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04-07-2004, 02:32 PM
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#2
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Registered User
Join Date: Nov 2002
Location: South Jersey
Posts: 575
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I am using 2 catco cats and two dynomax bullets in my true dual setup. They are running off of jet-hot longtube headers. The only thing I dont like about it is that there was no room for a crossoevr pipe that I have found yet. I am still working on that. I am going to have test pipes made to bolt in place of my cats in between inspections. I'm also going to try to put the H pipe in between the two offroad pipes so I can just bolt in the H section in place of the cats.
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Paul 2000 Trans Am 'Vert M6 Lid/Cutout, 12.8 @ 109 342HP/362TQ 
Quote:
Originally Posted by DWray
You're old enough to know that most women fake their organisms.
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04-11-2004, 06:11 PM
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#3
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Member
Join Date: Jan 2004
Location: Largo, FL
Posts: 235
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That's not gonna pass the visual inspection though unless the guy is a moron.
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Eric Powell
No Camaro yet, but I'm workin on it!
(Donations can be sent to the Give-Eric-a-Camaro Foundation, Largo Florida) LOL
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04-11-2004, 08:05 PM
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#4
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Registered User
Join Date: Sep 1998
Location: US 1 Mile Marker 52 in the Florida Keys
Posts: 8,524
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if cost is part of your initial reason for doing duals...doesn't having a separate ypipe just for inspection kindda defeat that?
i would just do a normal cat-ed ypipe and a good sounding catback. it will be easier to find a decent sound since it will be muffled by the cats anyway...much less rasp
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ARREST-ME RED 99 Z-28, M6 - TSP Torquer V1 (233/233 .589" 112*), HS rockers, Flowtech LTs, 3" TDs, magnaflow 4x9s, FAST 90/90 ported, Mez EWP, 160 stat, SSRA, TSP lid, GMS maf ends, ASP pulley, Hurst w/LSS, Spec4, Fidanza FW, SS brake lines, BMR lca w/ brackets, phb, stb, 32/21mm swaybars, sfc, ZR1s
408.6 hp, 379.5 torque
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04-11-2004, 08:53 PM
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#5
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Registered User
Join Date: Feb 2003
Location: Toledo, OH
Posts: 1,049
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I don't have any cats on my setup. Having cats would be an expensive way to go, plus it would be tough to fabricate. If you do a search, there have been a few people with duals and cats, but I would reccommend going with a y-pipe and catback if you need cats. Then just have cutouts before the cats. just my .02
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