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12-02-2012, 12:44 AM
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#1
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Join Date: Jul 2008
Location: Blackwood/Laurel Springs
Posts: 518
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GMMG or True duals
I currently have a gmmg cat back on my ws6, but lately I've been thinking about going with true duals. Clearance is not really a concern of mine. What do you guys think stay GMMG or go duals.
Just some youtube videos I found.
This is exactly how my car sounded with the MS4
http://www.youtube.com/watch?v=8yWi9Dfv_pQ
This is the dual setup I'm looking into now.
http://www.youtube.com/watch?v=ObT8LOKFLx0
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2001 Trans Am WS6 6 speed - forged 6.0 with a stock cam and a rough idle
1994 Trans Am GT 6 speed - (sold)
1987 Camaro Iroc-Z - flintstone car(sold)
1992 Camaro RS - slow 305 6 speed (sold)
Quote:
Originally Posted by camaro2you
What is a opti?
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Last edited by spina74; 12-02-2012 at 12:52 PM.
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12-02-2012, 12:54 AM
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#2
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12 Second Club / Bullwinkle
Join Date: Oct 2010
Location: Old Bridge, NJ/Corpus Christi, TX
Posts: 1,847
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I say go true duals, but my opinion is kinda biased. If you can get around the clearance and the fact that it will have to be fabricated, then go for it. IMO a proper td setup outshines a y-pipe setup in sound and performance. With that being said, the gmmg sounds great for a y-pipe car. Maybe true duals with power sticks? Basically a true dual gmmg exhaust...
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1994 Medium Patriot Red Z28 6spd
370ci/Huron Speed T6 S480 ET-R HO
Quote:
Originally Posted by Jersey Mike
Quote:
Originally Posted by WSex
who is FFB?
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An NJFBOA legend. Ask about him at the next meet. |
Last edited by coolmanvette75; 12-02-2012 at 01:22 AM.
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12-02-2012, 01:58 AM
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#3
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Join Date: Nov 2012
Location: Millstone, NJ
Posts: 641
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Makes me wish the trans ams had back bumper like the formulas or camaros so theres no cutout in the bumpers for the exhaust. Then id just dump it haha
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94 TA GT. Stock 350, cam, exhaust
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12-02-2012, 09:34 AM
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#4
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Quote:
Originally Posted by coolmanvette75
I say go true duals, but my opinion is kinda biased. If you can get around the clearance and the fact that it will have to be fabricated, then go for it. IMO a proper td setup outshines a y-pipe setup in sound and performance. With that being said, the gmmg sounds great for a y-pipe car. Maybe true duals with power sticks? Basically a true dual gmmg exhaust...
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Prove the performance part please?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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12-02-2012, 12:52 PM
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#5
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Join Date: Jul 2008
Location: Blackwood/Laurel Springs
Posts: 518
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updated with some videos I found
__________________
2001 Trans Am WS6 6 speed - forged 6.0 with a stock cam and a rough idle
1994 Trans Am GT 6 speed - (sold)
1987 Camaro Iroc-Z - flintstone car(sold)
1992 Camaro RS - slow 305 6 speed (sold)
Quote:
Originally Posted by camaro2you
What is a opti?
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12-02-2012, 12:59 PM
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#6
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Join Date: Sep 2004
Location: New York City/ Cape May
Posts: 1,047
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Are you going for sound or performance?
JW 
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Fbody - 2002 WS6 Trans Am Sunset Orange M6
Daily Driver - 2017 Silver Subaru Forester XT
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12-02-2012, 12:59 PM
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#7
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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No use for true duals. The work cost for negligable power gains isn't worth it
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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12-02-2012, 01:33 PM
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#8
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Join Date: Jul 2008
Location: Blackwood/Laurel Springs
Posts: 518
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Quote:
Originally Posted by JW
Are you going for sound or performance?
JW |
Both
__________________
2001 Trans Am WS6 6 speed - forged 6.0 with a stock cam and a rough idle
1994 Trans Am GT 6 speed - (sold)
1987 Camaro Iroc-Z - flintstone car(sold)
1992 Camaro RS - slow 305 6 speed (sold)
Quote:
Originally Posted by camaro2you
What is a opti?
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12-02-2012, 05:52 PM
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#9
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Join Date: Aug 2005
Location: Blackwood, NJ
Posts: 2,295
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loudmouth!
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Jeff
2002 WS6 T/A.. M6..Built 383 TMR tune..461rwhp,458rwtq
2009 G8 GT. Bone stock 13.6@103.. Vararam Intake, GXP Axlebacks, LS2 FRC's
1998 Corvette Convertible, Vararam Intake+Power Duct, Fast 90/90, Ti Axleback..12.8@110
2003 Cobra Convertible 10th Anniversary
http://www.fquick.com/slow-v6
Local car cruise schedule..
http://www.cliffscalendar.com/
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12-04-2012, 09:12 AM
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#10
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Join Date: Jul 2005
Location: Williamstown NJ
Posts: 479
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QTP cutout(s)!!!
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F-Bodyless 
01 GMC Sierra C3 6.0L, AWD, Westers Tune, K&N, Hella LED Tails
03 Pontiac Grand Prix GT, GMPP Handling Kit, LS1 F-Body Brakes
Last edited by Mark B; 12-04-2012 at 09:12 AM.
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12-06-2012, 01:57 AM
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#11
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Join Date: May 2007
Location: Jim Thorpe PA
Posts: 2,133
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Quote:
Originally Posted by Slow-V6
loudmouth!
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BARFFFFFFFF
Quote:
Originally Posted by Mark B
QTP cutout(s)!!!
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DMH cutouts ftw
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01 SS 383 stroker, Magnum F, 9in.
86 Trans-Am 355 t56
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12-06-2012, 03:34 PM
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#12
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Join Date: Nov 2012
Location: Millstone, NJ
Posts: 641
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Loudmouth 2 FTW
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94 TA GT. Stock 350, cam, exhaust
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12-06-2012, 03:46 PM
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#13
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by Slow-V6
loudmouth!
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Quote:
Originally Posted by Mark B
QTP cutout(s)!!!
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Quote:
Originally Posted by B4C
BARFFFFFFFF
DMH cutouts ftw
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Quote:
Originally Posted by Dudbird113
Loudmouth 2 FTW
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All of these FTL. He already has one of the best Y-pipe exhausts out there, why go to a cheaper setup that sounds worse? Guys practically get into fistfights about used GMMG setups.
Stay with the GMMG unless you NEED a true dual setup IMO. Find someplace else to spend that money.
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12-06-2012, 03:59 PM
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#14
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Join Date: Sep 2004
Location: New York City/ Cape May
Posts: 1,047
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I'm with WildBillyT on this one.
JW
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Fbody - 2002 WS6 Trans Am Sunset Orange M6
Daily Driver - 2017 Silver Subaru Forester XT
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12-06-2012, 06:57 PM
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#15
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12 Second Club
Join Date: Oct 2011
Location: Clementon Nj
Posts: 173
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tsp duals ftw. sound better than any catback imo, i felt a gain going from my ****** pacesetter y-pipe magnaflow combo.
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2002 Trans Am Ws-6 M6:
bolt-on's-tick-monster-UMI-
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12-06-2012, 07:20 PM
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#16
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Ricers make their cars loud for no reason too.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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12-06-2012, 09:06 PM
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#17
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Join Date: Mar 2011
Location: Morris County
Posts: 1,033
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If you want to be loud, Ill trade you my LM1 straight up for your GMMG. Wait, I'll throw in $100.00.
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94 Trans am 25th anniversary
86 Buick Regal T-type
73 camaro 454/T56 work in progress.
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12-06-2012, 09:27 PM
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#18
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Join Date: Jul 2008
Location: Blackwood/Laurel Springs
Posts: 518
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Quote:
Originally Posted by LTb1ow
Ricers make their cars loud for no reason too.
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unlike a ricer, mine actually moves
__________________
2001 Trans Am WS6 6 speed - forged 6.0 with a stock cam and a rough idle
1994 Trans Am GT 6 speed - (sold)
1987 Camaro Iroc-Z - flintstone car(sold)
1992 Camaro RS - slow 305 6 speed (sold)
Quote:
Originally Posted by camaro2you
What is a opti?
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12-07-2012, 01:36 PM
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#19
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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Your exhaust sounds great now, if it sounds like the video. If you want it louder just put a cutout at the end of the y pipe
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12-07-2012, 05:04 PM
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#20
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Join Date: Jul 2008
Location: Blackwood/Laurel Springs
Posts: 518
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Quote:
Originally Posted by Lt1_8U
Your exhaust sounds great now, if it sounds like the video. If you want it louder just put a cutout at the end of the y pipe
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It use to when i had one, I was using the ms4 as a comparison since its a more common cam then what I have now. I think I'm just gonna get a new y-pipe and keep the gmmg...mines got that typical cut and weld merge.
__________________
2001 Trans Am WS6 6 speed - forged 6.0 with a stock cam and a rough idle
1994 Trans Am GT 6 speed - (sold)
1987 Camaro Iroc-Z - flintstone car(sold)
1992 Camaro RS - slow 305 6 speed (sold)
Quote:
Originally Posted by camaro2you
What is a opti?
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