GMMG inc Chambered exhaust opnions...
11-13-2001, 11:02 PM
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GMMG inc Chambered exhaust opnions... I've been wanting one of these setups but haven't had the chance to see one in person...just wanted some input on the sounds and possible power gains it may have?? thanks
11-13-2001, 11:22 PM
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Re: GMMG inc Chambered exhaust opnions... I just installed one a couple of weeks ago. I love it. The sound is awesome (no rasp, great snarl) and there is no doubt I experienced gains. Unfortunately I don't have any dyno #s or track comparisons for you.
I just noticed a big sotp gain through the entire rev range, but the biggest being after 4500 rpm. It doesn't seem to choke out before the rev limiter like it used to.
Hit the exhaust with a some rubbing compound and a foam wheel and it looks pretty sharp (I didn't do this, but another guy did and it looks awesome).
The only down side I see is that the entire rear section is welded and if the pipes aren't even it can be difficult making them even. They also don't have the looks of a Corsa, but for me I didn't care.
I am very suprised by the gains I got. I am curious to see what happens with the SII heads/cam, ls6 intake, and lt header mods coming this spring!!
Mike
I just noticed a big sotp gain through the entire rev range, but the biggest being after 4500 rpm. It doesn't seem to choke out before the rev limiter like it used to.
Hit the exhaust with a some rubbing compound and a foam wheel and it looks pretty sharp (I didn't do this, but another guy did and it looks awesome).
The only down side I see is that the entire rear section is welded and if the pipes aren't even it can be difficult making them even. They also don't have the looks of a Corsa, but for me I didn't care.
I am very suprised by the gains I got. I am curious to see what happens with the SII heads/cam, ls6 intake, and lt header mods coming this spring!!
Mike
11-13-2001, 11:27 PM
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Re: GMMG inc Chambered exhaust opnions... Power gains have been argued quite abit about the GMMG. For the most part it will give you gains over a stock exhaust. Better then some after market, worst for some others. It would depend on what mods you already have and plan in the future.
I haven't looked that close at the one's I've seen. But the sound is GREAT. I plan on adding one to my SS around Feb or March. My biggest problem with it is I can't find anyone that has put it on with a Center Mount Exhaust so I don't know what it will sound like. But I will be finding out.
Hope this answers a few of your questions. You can also here what they sound like at their web site. http://www.gmmginc.net
I haven't looked that close at the one's I've seen. But the sound is GREAT. I plan on adding one to my SS around Feb or March. My biggest problem with it is I can't find anyone that has put it on with a Center Mount Exhaust so I don't know what it will sound like. But I will be finding out.
Hope this answers a few of your questions. You can also here what they sound like at their web site. http://www.gmmginc.net
11-14-2001, 08:57 AM
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Re: GMMG inc Chambered exhaust opnions... i've been on the website...i want to hear one in person though <img src="images/icons/smile.gif" border="0"> guess i'll have to wait until i buy mine <img src="images/icons/smile.gif" border="0">
11-14-2001, 11:35 PM
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Re: GMMG inc Chambered exhaust opnions... I can vouch for performance gains with the GMMG. I went from a 13.298 @ 106.53 100% stock to what's in my sig with only an MTI lid and the GMMG. The car feels completely different from when it had no mods. The sound is incredible and I wouldn't trade it for any other catback. If anyone's interested, there is a video of my Formula with the GMMG on my homepage. The link is in my sig... <img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
10-08-2002, 01:24 PM
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Re: GMMG inc Chambered exhaust opnions... Well I think I am about to buy gmmg but one thing I need to know before I buy is how muc louder is it crusing around town than flowmaster?
10-08-2002, 08:27 PM
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Re: GMMG inc Chambered exhaust opnions... Dang man, this thread is OLD!!!! Almost a whole year old!! Why didn't you just start a new one instead of ressurecting this one.
Anyway, GMMG is quiet as stock when cruising at one speed, give it some gas though and it will come alive. You will get rasp though when you take the cats off.
Man, I remember when me and Poltergiest ran a GP for the GMMG about this time last year, probably a little after this thread came out <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Chris
Anyway, GMMG is quiet as stock when cruising at one speed, give it some gas though and it will come alive. You will get rasp though when you take the cats off.
Man, I remember when me and Poltergiest ran a GP for the GMMG about this time last year, probably a little after this thread came out <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Chris
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10-09-2002, 07:25 PM
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Re: GMMG inc Chambered exhaust opnions... Here is what it sounds like from inside the car:
http://wsbf.clemson.edu/robert/run_2.mpg
Car is a 2000 WS6 Formula and has only a lid and the GMMG catback.
http://wsbf.clemson.edu/robert/run_2.mpg
Car is a 2000 WS6 Formula and has only a lid and the GMMG catback.
10-09-2002, 07:58 PM
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Re: GMMG inc Chambered exhaust opnions... This is what it sounds like on an internally stock engine with MAC headers and ORP.
http://wsbf.net/robert/nobr8kss_autox.mpg
http://wsbf.net/robert/nobr8kss_autox.mpg
10-10-2002, 05:05 PM
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Re: GMMG inc Chambered exhaust opnions... I've heard one in person and rode in the car it was installed on. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
Personally, I don't like the sound of the GMMG. The car I rode in was a good bit louder than stock at idle and loud on the highway at speed.
I'd take a Corsa or Borla anytime over a GMMG.
Of course it's all in the ear of the beholder and I like the quite SLP dual/dual the best of all.
Personally, I don't like the sound of the GMMG. The car I rode in was a good bit louder than stock at idle and loud on the highway at speed.
I'd take a Corsa or Borla anytime over a GMMG.
Of course it's all in the ear of the beholder and I like the quite SLP dual/dual the best of all.
10-11-2002, 11:36 AM
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Re: GMMG inc Chambered exhaust opnions... </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 99 Black Bird T/A:
<strong>I've heard one in person and rode in the car it was installed on. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
Personally, I don't like the sound of the GMMG. The car I rode in was a good bit louder than stock at idle and loud on the highway at speed.
I'd take a Corsa or Borla anytime over a GMMG.
Of course it's all in the ear of the beholder and I like the quite SLP dual/dual the best of all.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you like the "stock sounding" SLP dual/dual the best, then I can totally understand you hating the sound of the GMMG(as it is considerably louder than the dual/dual). But honestly, the GMMG is not that loud IMHO. It is a little louder than stock at idle(not by much though), noticeably louder just cruising around, and a lot louder at WOT(but every aftermarket cat-back is very loud at full throttle).
Mike
<strong>I've heard one in person and rode in the car it was installed on. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
Personally, I don't like the sound of the GMMG. The car I rode in was a good bit louder than stock at idle and loud on the highway at speed.
I'd take a Corsa or Borla anytime over a GMMG.
Of course it's all in the ear of the beholder and I like the quite SLP dual/dual the best of all.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you like the "stock sounding" SLP dual/dual the best, then I can totally understand you hating the sound of the GMMG(as it is considerably louder than the dual/dual). But honestly, the GMMG is not that loud IMHO. It is a little louder than stock at idle(not by much though), noticeably louder just cruising around, and a lot louder at WOT(but every aftermarket cat-back is very loud at full throttle).
Mike
10-11-2002, 11:42 AM
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Re: GMMG inc Chambered exhaust opnions... </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"><strong>But honestly, the GMMG is not that loud IMHO. It is a little louder than stock at idle(not by much though), noticeably louder just cruising around, and a lot louder at WOT(but every aftermarket cat-back is very loud at full throttle).
Mike</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I found GMMG to be considerably louder when used with LT Headers and hi-flow cats. Extremely loud with off-roads.
I love the sound, but it is loud with Headers.
Mike
<small>[ October 11, 2002, 11:49 AM: Message edited by: Brownie ]</small>
Mike</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I found GMMG to be considerably louder when used with LT Headers and hi-flow cats. Extremely loud with off-roads.
I love the sound, but it is loud with Headers.
Mike
<small>[ October 11, 2002, 11:49 AM: Message edited by: Brownie ]</small>
10-11-2002, 01:08 PM
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Re: GMMG inc Chambered exhaust opnions... Good grief, now I torn between the GMMG or the Dr. Gas x-pipe set-up. Heard both sound clips and these are the sounds that I was looking or listening for.
My mind is just going bonkers right now, thanks alot. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> Now I have to talk to my shrink. <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" />
My mind is just going bonkers right now, thanks alot. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> Now I have to talk to my shrink. <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" />
10-11-2002, 01:49 PM
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Re: GMMG inc Chambered exhaust opnions... That is hilarious, $700 for THAT?? The quality and performance can't be any better than the loudmouth from the looks of it, and it is not a true dual setup like they claim. I think I will stick with my X-pipe setup <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
10-11-2002, 06:53 PM
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Re: GMMG inc Chambered exhaust opnions... well since my old post was brought back up guess i'll reply on it... I've gotten the GMMG since then and I love it... I now have Hooker LT's and offroad pipe as well... today I just took off the optional tips that you can buy for it and it sounds even better it's wierd it's quieter at idle now but still has a very deep tone and just sounds deeper all the way through the rpm range... i love the way it sounds just don't like the way it looks without tips i might have to make some sort of down pipe for it or something... anyways If I had to do it again I would buy the exhaust but probably pass on the tips and get my own <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
10-11-2002, 08:03 PM
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Re: GMMG inc Chambered exhaust opnions... </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Special K '01 WS6:
<strong>well since my old post was brought back up guess i'll reply on it... I've gotten the GMMG since then and I love it... I now have Hooker LT's and offroad pipe as well... today I just took off the optional tips that you can buy for it and it sounds even better it's wierd it's quieter at idle now but still has a very deep tone and just sounds deeper all the way through the rpm range... i love the way it sounds just don't like the way it looks without tips i might have to make some sort of down pipe for it or something... anyways If I had to do it again I would buy the exhaust but probably pass on the tips and get my own <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I personally love those oval optional tips that you can get with the exhaust. I think they look and blend in perfectly with the flat bumper of the Camaro.
<strong>well since my old post was brought back up guess i'll reply on it... I've gotten the GMMG since then and I love it... I now have Hooker LT's and offroad pipe as well... today I just took off the optional tips that you can buy for it and it sounds even better it's wierd it's quieter at idle now but still has a very deep tone and just sounds deeper all the way through the rpm range... i love the way it sounds just don't like the way it looks without tips i might have to make some sort of down pipe for it or something... anyways If I had to do it again I would buy the exhaust but probably pass on the tips and get my own <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I personally love those oval optional tips that you can get with the exhaust. I think they look and blend in perfectly with the flat bumper of the Camaro.
10-11-2002, 08:07 PM
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Re: GMMG inc Chambered exhaust opnions... </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Fenris Ulf:
<strong>That is hilarious, $700 for THAT?? The quality and performance can't be any better than the loudmouth from the looks of it, and it is not a true dual setup like they claim. I think I will stick with my X-pipe setup <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I will agree that $700 is overpriced but this exhaust can be had for roughly $600 on a GP. What's the difference between paying that much for the GMMG and something else such as the B&B, Borla, and Corsa? The GMMG quality is just as good as any of those systems(although not as fancy) and I personally think the sound of this exhaust blows those other systems away. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
<strong>That is hilarious, $700 for THAT?? The quality and performance can't be any better than the loudmouth from the looks of it, and it is not a true dual setup like they claim. I think I will stick with my X-pipe setup <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I will agree that $700 is overpriced but this exhaust can be had for roughly $600 on a GP. What's the difference between paying that much for the GMMG and something else such as the B&B, Borla, and Corsa? The GMMG quality is just as good as any of those systems(although not as fancy) and I personally think the sound of this exhaust blows those other systems away. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
10-11-2002, 09:51 PM
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Re: GMMG inc Chambered exhaust opnions... Hmmm I thought with the optional tips the GMMG was about $850 retail. Sounds like the price has dropped a little.
As for best sound Borla and Corsa are excellent but a cut out sounds good too. Guess I need to add a cut out to my SLP dual/dual for the two times a year I want to make some noise. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
As for best sound Borla and Corsa are excellent but a cut out sounds good too. Guess I need to add a cut out to my SLP dual/dual for the two times a year I want to make some noise. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
10-12-2002, 02:19 PM
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Re: GMMG inc Chambered exhaust opnions... Gents,
I haven't dynoed my Intimidator yet, but it pulls much stronger then my other Camaros. Heres what I run:
99 Z28: Borla, lid, free mods, FTRA, M6, 3:42
gears.
00 SS : SLP cat-back, lid, free mods, ported
MAF, M6, 3:42 gears.
01 SS : Dale Earnhardt Intimidator, GMMG cat-
back, M6, 3:73 gears.
Everyone who hears or drives my cars votes for the GMMG exhaust hands down!
Enjoy your cars.
I haven't dynoed my Intimidator yet, but it pulls much stronger then my other Camaros. Heres what I run:
99 Z28: Borla, lid, free mods, FTRA, M6, 3:42
gears.
00 SS : SLP cat-back, lid, free mods, ported
MAF, M6, 3:42 gears.
01 SS : Dale Earnhardt Intimidator, GMMG cat-
back, M6, 3:73 gears.
Everyone who hears or drives my cars votes for the GMMG exhaust hands down!
Enjoy your cars.
10-12-2002, 02:29 PM
#20
Re: GMMG inc Chambered exhaust opnions... NC GUY, congrats on having 3 nice cars! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
However, I think the harder pulling from the Intimidator cars is probably more a culprit of the 3:73's, than the exhaust....
The GMMG is a nice catback with a unique sound. It flows just the same as any good flowing catback, and if you can get in on a GP it's well worth it...
Josh
However, I think the harder pulling from the Intimidator cars is probably more a culprit of the 3:73's, than the exhaust....
The GMMG is a nice catback with a unique sound. It flows just the same as any good flowing catback, and if you can get in on a GP it's well worth it...
Josh