Catback. Corsa or GMMG?
Originally Posted by Deadlybird54
I want a sound that people will notice at low revs and will wake the dead/give people the shakes at WOT.
to whomever says a GMMG sounds like a truck... what the **** ever...
it howls like something unholy at higher RPM's, and at cruising lower RPM's, its a constant varying warble... not too deep like a truck, but not hitch pitched like a honda ...
it's an orgasm for your eardrums... adding anything engine wise especially after LT's will only increase how good the GMMG sounds...
as far as making a "LM GMMG" style catback with powerpacks... I looked into that route... and to be very honest... you go right the **** ahead and put two non-stainless chambers into a stainless system, add to that the cost of said stainless system, and if you're not a welder, the additional cost of labor. Not to mention, adding to the difficulty of installation and having to also deal with the resonator installed on it to begin with ...
it's not very cost effective in the end.
now if you've got some spare mandrel bends and piping around, by all means go for it... or if you've got an existing LM or even the TSP Rumbler...
but in the end...
well...
you know
very thrilled and satisfied with my GMMG and I'm glad I went the route I did...
it howls like something unholy at higher RPM's, and at cruising lower RPM's, its a constant varying warble... not too deep like a truck, but not hitch pitched like a honda ...
it's an orgasm for your eardrums... adding anything engine wise especially after LT's will only increase how good the GMMG sounds...
as far as making a "LM GMMG" style catback with powerpacks... I looked into that route... and to be very honest... you go right the **** ahead and put two non-stainless chambers into a stainless system, add to that the cost of said stainless system, and if you're not a welder, the additional cost of labor. Not to mention, adding to the difficulty of installation and having to also deal with the resonator installed on it to begin with ...
it's not very cost effective in the end.
now if you've got some spare mandrel bends and piping around, by all means go for it... or if you've got an existing LM or even the TSP Rumbler...
but in the end...
well...
you know
very thrilled and satisfied with my GMMG and I'm glad I went the route I did...
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by Demon Of Dreams
it's an orgasm for your eardrums... adding anything engine wise especially after LT's will only increase how good the GMMG sounds...
my cutout sounds about exactly the same as a GMMG on stock manifolds. i'm not about to have an eardrum orgasm, whatever that is. i think it sounds pretty mediocre.
as for your LT's and ORY combination...well, i hate rasp. that combo would never be in my future.
take GMMG in any style you want, LT's+cats, LT's+ORY, stock manifolds+cats, stock manifolds w/out cats, i don't care - and compare it to single chamber flowmasters and an H-pipe. tell me what sounds better. after hearing that, nothing else sounds good.
GMMG is a nice sounding exhaust, but IMO, it's not worth the price tag for what you get. it's very overrated. it's good, but there are better combinations out there. don't limit yourself to an off-the-shelf catback. often, the most creative ideas are the coolest. just don't get too weird
no glass packs and cherry bombs. Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
as far as GMMG goes, i think this is probably one of the best sound clips out there:
http://www.ls1sounds.com/GMMG/GMMG_J...6-idle-rev.WMV
i think that sounds pretty mean, but you can't tell me it doesn't sound like a really mean truck at startup and idle. you just have to ask yourself if that sound is worth $700 - $850. it's nothing unique as you can get that deep, camming sound with quite a bit of exhausts out there. shoot, TD's w/bullets kinda sounds like that, just even louder it's all up to you.
http://www.ls1sounds.com/GMMG/GMMG_J...6-idle-rev.WMV
i think that sounds pretty mean, but you can't tell me it doesn't sound like a really mean truck at startup and idle. you just have to ask yourself if that sound is worth $700 - $850. it's nothing unique as you can get that deep, camming sound with quite a bit of exhausts out there. shoot, TD's w/bullets kinda sounds like that, just even louder
it's all up to you. 
Thread Starter
Teching In
Joined: Nov 2006
Posts: 44
Likes: 0
From: Castle Rock, CO
Originally Posted by hammerhead
That would be the GMMG. I can't wait to get my LT's on. Shake & bake
Im goin' GMMG, case closed. Thanks for the feedback guys.
Originally Posted by ChocoTaco369
my cutout sounds about exactly the same as a GMMG on stock manifolds. i'm not about to have an eardrum orgasm, whatever that is. i think it sounds pretty mediocre.
as for your LT's and ORY combination...well, i hate rasp. that combo would never be in my future.
take GMMG in any style you want, LT's+cats, LT's+ORY, stock manifolds+cats, stock manifolds w/out cats, i don't care - and compare it to single chamber flowmasters and an H-pipe. tell me what sounds better. after hearing that, nothing else sounds good.
GMMG is a nice sounding exhaust, but IMO, it's not worth the price tag for what you get. it's very overrated. it's good, but there are better combinations out there. don't limit yourself to an off-the-shelf catback. often, the most creative ideas are the coolest. just don't get too weird
no glass packs and cherry bombs.People with certain things are partial to certain things, I honestly had experienced a lot of setups for the LS1 and just didn't care for them... not even a Borla fan overall... I love their tips, but just dislike the system. A friend of mine has it and loves it... to each their own.
For the price I paid ($600 shipped with tips) I'm certainly not complaining whatsoever ... I got a good deal when I saw it and never looked back. It's not overrated when you own one... its overrated to others who honestly just listen to clips on the internet. In person, no clip can do the GMMG justice... the harmonics in the majority of peoples cameras are far from great, even my own which I honestly think are a bit better than most clips around, don't do it justice ...
I picked it for a variety of reasons... one being, I've always loved the sound of a chambered muffler setup, since experiencing a true DZ302 Z28 with chambers, I've been hooked. Putting it on my SS was personal preference, I'd have paid the cost regardless. Plus, you also have the benefit of 100% stainless steel... something most systems don't offer unless they're around the same range.
Sure, I could do my own in stainless... like was mentioned, powerpacks/sticks or even the stainlessworks chambered (for $120 a pop) could work... but its not going to benefit me any more than anything else...
If I do for some reason decide to go with a dual exhaust, I'd still not opt for those flowmaster single chambers, instead going with a pair of the powersticks or the stainless works chambers instead.
Why? I just feel they sound better.
as far as mediocre is concerned, I considered the Corsa, and listened to a few of them in person in various stages of engine work from stock to a 408 ... It just didn't do it for me. But like I said. That's me.
I've yet to be disappointed in my GMMG.
I doubt I ever will be.
and on the plus side, if I DO decide to go true dual... I've got a plan for a little third gen action that will indeed need a new exhaust... thankfully, the GMMG will work in that application as well
its preference, don't go knocking a system just because you think it sounds like a truck... I can say a hooker system sounds like a boat, but the owners with them will either agree, or deny it completely, no matter how much it does sound like one.
also, don't try to justify your corsa system.
some people just bash the GMMG because it has basically a cult following
but for those of us with it, we'd accept no substitues.
thanks
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Originally Posted by ChocoTaco369
as far as GMMG goes, i think this is probably one of the best sound clips out there:
http://www.ls1sounds.com/GMMG/GMMG_J...6-idle-rev.WMV
i think that sounds pretty mean, but you can't tell me it doesn't sound like a really mean truck at startup and idle. you just have to ask yourself if that sound is worth $700 - $850. it's nothing unique as you can get that deep, camming sound with quite a bit of exhausts out there. shoot, TD's w/bullets kinda sounds like that, just even louder it's all up to you.
http://www.ls1sounds.com/GMMG/GMMG_J...6-idle-rev.WMV
i think that sounds pretty mean, but you can't tell me it doesn't sound like a really mean truck at startup and idle. you just have to ask yourself if that sound is worth $700 - $850. it's nothing unique as you can get that deep, camming sound with quite a bit of exhausts out there. shoot, TD's w/bullets kinda sounds like that, just even louder
it's all up to you.
Originally Posted by Demon Of Dreams
I've always loved the sound of a chambered muffler setup, since experiencing a true DZ302 Z28 with chambers, I've been hooked.
Amen, brother. That DZ302/chambered sound is exactly how I want mine to sound. I'm even going to put a cam in just for that sound (or as close as I can get with an LS1).
So, uhhh, yeah, GMMG.
Originally Posted by 5PONT7
LM II + LT + ORY is the best sound I ever herd.
Corsa here, i love it at WOT, and i can keep it nice and quiet when around cops
dude no offense but your soundclip sounds horrible... that thing sounds like a cat hacking up a furball. it sounds like a truck as well... an old beat up truck. im not a fan of corsa at all, nice tips though! gmmg all the way man!!!
Originally Posted by ChocoTaco369
GMMG 
Corsa
that's all well and good, but why? most people just for for what they have with little to no explanation behind it. give some reasons, guys! voting for what you have doesn't mean that it's the way to go.
here's my explanation:
GMMG IMO is overrated. it's not very unique at all. on stock manifolds, it sounds almost exactly the same as a cutout. with LT's and a catted-y, it sounds better, and with LT's and an ORY it's pretty raspy. it's not really a special sound - it's deep, it's decently loud and that's about it.
corsa is a very unique sound. it sounds nothing like any other catback out there. not too many people have it, so if you're into having your own unique sound instead of sounding like every other dodge ram pickup on the road, corsa is it (yes, GMMG sounds like a truck motor. some trucks sound very good, and GMMG cars do sound good, but it sounds like any other V8 on the road).
they're both expensive, they're both stainless, and they're both very different from one another.
IMO, all y-pipe setups are garbage, and you should go with true duals. i'll be putting my corsa in the for sale section pretty soon. i'm running it now with an open cutout and it sounds decent, but no y-pipe setup is good enough for me.
if you want the most exotic sound possible, corsa is it. if you want to sound deep like a truck (a good sounding truck, but still a truck), GMMG is it. see sound clip in my signature for a clip of corsa (before my cutout was added).
Corsa
that's all well and good, but why? most people just for for what they have with little to no explanation behind it. give some reasons, guys! voting for what you have doesn't mean that it's the way to go.
here's my explanation:
GMMG IMO is overrated. it's not very unique at all. on stock manifolds, it sounds almost exactly the same as a cutout. with LT's and a catted-y, it sounds better, and with LT's and an ORY it's pretty raspy. it's not really a special sound - it's deep, it's decently loud and that's about it.
corsa is a very unique sound. it sounds nothing like any other catback out there. not too many people have it, so if you're into having your own unique sound instead of sounding like every other dodge ram pickup on the road, corsa is it (yes, GMMG sounds like a truck motor. some trucks sound very good, and GMMG cars do sound good, but it sounds like any other V8 on the road).
they're both expensive, they're both stainless, and they're both very different from one another.
IMO, all y-pipe setups are garbage, and you should go with true duals. i'll be putting my corsa in the for sale section pretty soon. i'm running it now with an open cutout and it sounds decent, but no y-pipe setup is good enough for me.
if you want the most exotic sound possible, corsa is it. if you want to sound deep like a truck (a good sounding truck, but still a truck), GMMG is it. see sound clip in my signature for a clip of corsa (before my cutout was added).
Banned
Joined: Mar 2007
Posts: 661
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From: Shreveport,Louisiana
Man if I could just get my Z to sound as good as my 5.0 Stang with shortys , off road H-pipe and glass pacs I'd be jackin off.
That little phuther mucker sounded soooo good at start-up~at idle~and at about 2 grand crusin down the hi-way . Sometimes I really miss that bitch.
That little phuther mucker sounded soooo good at start-up~at idle~and at about 2 grand crusin down the hi-way . Sometimes I really miss that bitch.
GMMG is a quality exhaust. Everything about it is top notch.
lol @ it sounds like a truck. Try checking it out on a car in front of your eyes.
The price is NOT bad when you factor into it you can wait on the group purchase and get a nice deal.
Like others I paid $600 w/ standard tips, it'll last the life of my car.
If you're already looking into that price range, GMMG is the way to go.
lol @ it sounds like a truck. Try checking it out on a car in front of your eyes.
The price is NOT bad when you factor into it you can wait on the group purchase and get a nice deal.
Like others I paid $600 w/ standard tips, it'll last the life of my car.
If you're already looking into that price range, GMMG is the way to go.