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View Poll Results: What should I go with?
True Duals
33
60.00%
GMMG
22
40.00%
Multiple Choice Poll. Voters: 55. You may not vote on this poll

Final decision...GMMG vs. True Duals

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Old 09-19-2006, 04:33 AM
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Default Final decision...GMMG vs. True Duals

Alright guys,
I'm military and originally from CA, I plan on being back in CA and bein stationed there soon. I really want True Duals, but I cant decide if its really worth it to deal with Cops and Smog...plus the bases in CA, from what I hear require you to get smogged!
You guys think I should just settle for the GMMG???
Let me know what you guys think!
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Old 09-19-2006, 06:43 AM
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F GMMG! get the duals. slap high slow cats on it and be done with it. you wont regret it.
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Old 09-19-2006, 07:16 AM
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i used to have dumped duals. but i hated how low they were. and i would have preferred that it went out the back. but instead i just put on an ORY and hooker cat back. i dont regret it. but true duals do sound good for sure.
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Old 09-19-2006, 07:51 AM
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I would not call it "settling" either way is great. I would get the duals personally, but I like the GMMG. I want to trade my duals for the GMMG actually.
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Old 09-19-2006, 09:36 AM
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^ werd. I live in NJ which is not exactly a passive state, emissions wise, but I don't regret my decision for TDs for a second. The sound is unreal, the cost is great.
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Old 09-19-2006, 09:43 AM
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Why do duals affect emissoins? If you're running stock headers and CATS just slap the duals on where the Y pipe would noramlly be.
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Old 09-19-2006, 09:43 AM
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Originally Posted by orangeapeel
I would not call it "settling" either way is great. I would get the duals personally, but I like the GMMG. I want to trade my duals for the GMMG actually.
Why you thinking of swapping out the duals?
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Old 09-19-2006, 10:01 AM
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hey im at the Miramar base in San Diego. I didnt have to smog my car to get a base decal cause its a newer car. but i might have just been lucky that day at the base decal place. i'de say GMMG, but are true duals legal for smog inspection, i'de think you would fail the visual inspection. Im lucky i have a FL plate, haha no CA smog tests
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Old 09-19-2006, 10:15 AM
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Originally Posted by 300bhp/ton
Why do duals affect emissoins? If you're running stock headers and CATS just slap the duals on where the Y pipe would noramlly be.
Not emissions per say, I should clarify... in NJ I believe dumped exhaust is "frowned upon". You're right though, cats shouldn't make a difference, and if push comes to shove, I put cats on and run the duals under the axle out the back.

-J
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Old 09-19-2006, 10:18 AM
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Go GMMG. The only true benefit of true duals is sound. GMMG dynoed 500+ horsepower cars with open headers, then put the GMMG on. It was only a loss of about 3 hp. No need to deal with the cops and smog people out here if you don't have to.

If you get here before I leave, and have problems getting a base decal, pm me. I was able to get one for my car.

Last edited by BlueThunder2; 09-19-2006 at 04:34 PM.
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Old 09-19-2006, 10:28 AM
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Yeah true duals will pass smog visually as long as the factory cats are in place. Even with you go with the gmmg which sounds great imo and you did not have cats in it you would not pass smog. There are also no smog legal aftermarket approved cats for our cars even though most smog shops dont know that. Anyways i would go with true duals out the back.
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Old 09-19-2006, 07:21 PM
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I had a similar thread to this recently.

https://ls1tech.com/forums/generation-iii-external-engine/572979-gmmg-vs-1-chambers.html

The responses might be useful to you.
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Old 09-19-2006, 07:47 PM
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True duals

You can pass emissions if all they do is an OBDII plug in diagnostic.

I passed with longtubes, no cats, dumped duals, TSP MS3, no AIR and no EGR.
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Old 09-19-2006, 08:08 PM
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Originally Posted by blkZ28spt
True duals

You can pass emissions if all they do is an OBDII plug in diagnostic.

I passed with longtubes, no cats, dumped duals, TSP MS3, no AIR and no EGR.
you live in indiana. he's in CA, the cesspool of america. he won't get away with that crap.

get the GMMG. it's legal, sounds good, performs great and is loud. it's not worth putting up with all the crap you have to go through with true duals. not to mention it's stainless steel, will last nearly forever and has great ground clearance.
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Old 09-19-2006, 09:06 PM
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Originally Posted by ChocoTaco369
you live in indiana. he's in CA, the cesspool of america. he won't get away with that crap.
Forgot about that.

Kali
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Old 09-19-2006, 11:36 PM
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TD all the way man .....dump em before the axel and let everyone know your coming .....its kinda cool
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Old 09-19-2006, 11:45 PM
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Originally Posted by ChocoTaco369
you live in indiana. he's in CA, the cesspool of america. he won't get away with that crap.

get the GMMG. it's legal, sounds good, performs great and is loud. it's not worth putting up with all the crap you have to go through with true duals. not to mention it's stainless steel, will last nearly forever and has great ground clearance.
LOLOLOLLLOLOLOLOOL

Thanks to cali we arn't getting that bad *** lil audi either
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Old 09-20-2006, 05:44 AM
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"Let them know you're coming" haha, who the Cops???
Thats all I'm worried about, is the attention and possibility of a Cop writing me up etc...
I wonder if I could just keep my WA state plates to keep them off me, theres ways around it being military..........but I dunno, emissions standards are just going to get worse with time.
The only thing with the GMMG is, I want it louder than stock. The only way I think I could manage that is by putting in a new Y/Cats and maybe even Shorties. I know it wouldnt improve HP, but would definetely change the sound.
Thanks for all the responces guys!!!!! ...I still cant decide
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Old 09-20-2006, 05:57 AM
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just go by your poll
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Old 09-20-2006, 05:57 AM
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Originally Posted by Ace$nyper
Thanks to cali we arn't getting that bad *** lil audi either
eh?
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