Gmmg Exhaust
09-21-2004, 05:14 PM
#2
TECH Fanatic
Join Date: Aug 2004
Location: NW Houston/Nacogdoches, Texas
Posts: 1,330
Likes: 0
Received 1 Like
on
1 Post
Originally Posted by ccsanders01
I Am Seeing People Talking About Gmmg Exhaust, What Is This. Please Fill Me In, Thanks Chad Sanders
09-21-2004, 07:16 PM
#3
Ruh-roh...jrp is gonna have a ****-fit.
His reply will be "SEARCH"
Mine is: the GMMG is a chambered exhaust, giving your car a late 60's-ish muscle car sound. It is only available through GMMG, and expect to pay out the *** for it unless you can find a group purchase on them. We're talking $700 for that exhaust with regular tips, and about $850 with their premium oval tips. If you don't have deep pockets, don't get it. There are other alternatives out there that are much cheaper, and sound just as good in many people's opinions. Don't ever try to convince a GMMG owner of this though...they'll burn you where you stand.
It is very nice, but very nice things for these cars come with a price. You gotta pay to play.
His reply will be "SEARCH"
Mine is: the GMMG is a chambered exhaust, giving your car a late 60's-ish muscle car sound. It is only available through GMMG, and expect to pay out the *** for it unless you can find a group purchase on them. We're talking $700 for that exhaust with regular tips, and about $850 with their premium oval tips. If you don't have deep pockets, don't get it. There are other alternatives out there that are much cheaper, and sound just as good in many people's opinions. Don't ever try to convince a GMMG owner of this though...they'll burn you where you stand.
It is very nice, but very nice things for these cars come with a price. You gotta pay to play.
09-22-2004, 11:11 AM
#6
Originally Posted by jrp
That was good.
GMMG IMO is the best catback system for an LS1 F-body. It has a chambered design and sounds like the old 69 Camaro's. Check it out here www.gmmginc.net
I have it and wouldn't even trade it for true duals.
edit: This is what I wrote for the exhaust review section.
Set-up:
Kooks LT's and Y with Magnaflow cats
GMMG chambered cat-back
Before Kook's:
If you plan to leave the stock manifolds, there is no better cat-back on the market. It's loud, deep and mean. The GMMG has the old 69 Camaro muscle car sound to it. At start up it's loud with a good tone to it. At warm idle it quiets down a bit, but doesn't lose any sound quality. At cruise you know you have something special and at WOT it's almost deafening. The best part about crusing in an M6 with GMMG is goin about 40 or so in 3rd gear (2300-2400 rpm) and then giving it some gas. It alomst screams. Best part is that there is NO drone.
The GMMG is not cheap though. $700 for the system and $850 with the polished oval tips. (which I had to get) By far the best money I've spent on my car. After the headers go on I'll post up more observations as well as pics.
www.gmmginc.net
Okay, the Kook's are on. Here's what I think:
Sounds:
On start up the car roars to life. It almost barks when I start it. At warm idle, it's a little louder and just as deep sounding as it did before. At cold idle (around 1100 rpm) it's alot louder, as are most exhaust systems because you're running a higher RPM. Give it a little bit of gas and it'll wake you up. Under "normal" acceleration it is a bit louder, but if you accelerate the way I do...it's just plain loud.....but a good loud. I though my GMMG alone at WOT was almost deafening, now it IS deafening. At WOT it is very very loud, yet very crisp and clear. On deceleration (engine breaking) it's actually quieter because there is no gargling sound from the back-pressure, it hums now. Overall it sounds amazing, I couldn't have hoped for it to be better.
Fit/Looks/Quality:
I didn't do the install myself, so I don't know how easily they went in. But from what I hear, they're a piece of cake. Everything appears to fit perfectly. There is no banging on the floorboard from the y-pipe and nothing is rubbing or hitting anywhere. They tuck up surprisingly well. I measuerd clearences and only gave up about a 1/2". I was shocked to see how high the collectors and y-pipe sat. I also checked out all the welds I could see and how everything fit together. This is all top-notch workmanship. The Kook's do cost more than just about everything else, but it's worth it because of the quality of the parts, workmanship and sound. Plus they look great.
Performance:
I haven't gotten the car dynoed yet, but will do that soon.
Driving around I noticed the power immediatley. The top end power from these headers is sick. I could not believe how hard my car pulls now up above 3000 RPM. As soon as I get past about 3000 rpm the car shoots forward, I love it.
Overall:
Bottom line: I love this set-up. It sounds so mean and aggressive it's not even funny. Definitley worth every penny and I hope to get sound clips up soon.
Trending Topics
11-10-2004, 03:40 AM
#8
TECH Senior Member
iTrader: (10)
Join Date: Mar 2003
Location: North Texas
Posts: 8,009
Likes: 0
Received 0 Likes
on
0 Posts
jrp, that was a very calm and restrained response. congrats man. you been goin to group lately or just workin on it on an individual basis? 
gettinthere, awesome post. absolutely could not have said it better myself. i am currently debating between Kooks/ORY/GMMG and Kooks/Sweet Thunder TD's from Lanes. Its a tough choice, obviously I'm not really worried about the price tag(first exhaust choice runs well over 1600
) but like you said you gotta pay to play. Just wish someone had either setup in the DFW area so I could hear it.
gettinthere, awesome post. absolutely could not have said it better myself. i am currently debating between Kooks/ORY/GMMG and Kooks/Sweet Thunder TD's from Lanes. Its a tough choice, obviously I'm not really worried about the price tag(first exhaust choice runs well over 1600
) but like you said you gotta pay to play. Just wish someone had either setup in the DFW area so I could hear it.
11-10-2004, 11:50 AM
#9
Originally Posted by cyphur_traq
jrp, that was a very calm and restrained response. congrats man. you been goin to group lately or just workin on it on an individual basis?
gettinthere, awesome post. absolutely could not have said it better myself. i am currently debating between Kooks/ORY/GMMG and Kooks/Sweet Thunder TD's from Lanes. Its a tough choice, obviously I'm not really worried about the price tag(first exhaust choice runs well over 1600) but like you said you gotta pay to play. Just wish someone had either setup in the DFW area so I could hear it.
gettinthere, awesome post. absolutely could not have said it better myself. i am currently debating between Kooks/ORY/GMMG and Kooks/Sweet Thunder TD's from Lanes. Its a tough choice, obviously I'm not really worried about the price tag(first exhaust choice runs well over 1600
) but like you said you gotta pay to play. Just wish someone had either setup in the DFW area so I could hear it.Thanks.
I would really stay away from the ORY unless you can deal with alot of rasp. Since there is no muffler, you need the cats to kill the rasp.
11-10-2004, 01:14 PM
#10
On The Tree
Join Date: May 2003
Location: USA
Posts: 132
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by gettinthere
Performance:
I haven't gotten the car dynoed yet, but will do that soon.
Driving around I noticed the power immediatley. The top end power from these headers is sick. I could not believe how hard my car pulls now up above 3000 RPM. As soon as I get past about 3000 rpm the car shoots forward, I love it.
Overall:
Bottom line: I love this set-up. It sounds so mean and aggressive it's not even funny. Definitley worth every penny and I hope to get sound clips up soon.
I haven't gotten the car dynoed yet, but will do that soon.
Driving around I noticed the power immediatley. The top end power from these headers is sick. I could not believe how hard my car pulls now up above 3000 RPM. As soon as I get past about 3000 rpm the car shoots forward, I love it.
Overall:
Bottom line: I love this set-up. It sounds so mean and aggressive it's not even funny. Definitley worth every penny and I hope to get sound clips up soon.
11-10-2004, 01:36 PM
#11
TECH Fanatic
iTrader: (5)
Join Date: Dec 2003
Location: WDM, Iowa
Posts: 1,108
Likes: 0
Received 0 Likes
on
0 Posts
I have to agree, I bought the GMMG in the GP a few months back and absolutely love it. I have stock manifolds with the GMMG and it sounds awesome, I have some videos from the day I installed it, you can see em here:
GMMG Videos
GMMG Videos
11-10-2004, 01:47 PM
#12
TECH Resident
iTrader: (4)
Join Date: Oct 2002
Location: Charlotte, NC
Posts: 764
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MeentSS02
There are other alternatives out there that are much cheaper, and sound just as good in many people's opinions. Don't ever try to convince a GMMG owner of this though...they'll burn you where you stand.
I've got my gasoline and matches right here.
11-10-2004, 02:06 PM
#13
TECH Senior Member
iTrader: (10)
Join Date: Mar 2003
Location: North Texas
Posts: 8,009
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by gettinthere
Thanks.
I would really stay away from the ORY unless you can deal with alot of rasp. Since there is no muffler, you need the cats to kill the rasp.
I would really stay away from the ORY unless you can deal with alot of rasp. Since there is no muffler, you need the cats to kill the rasp.
11-10-2004, 02:06 PM
#14
Teching In
Join Date: Jun 2004
Location: AZ
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
FYI - GMMG GP In Progress I realize this is an older post, but there is a New Sponser "GMMG". They have GP going till Nov 30 for those interested. One of the Best if not the Best chambered exhaust ever. Get'em while their HOT!!! 
11-10-2004, 02:08 PM
#15
TECH Senior Member
iTrader: (10)
Join Date: Mar 2003
Location: North Texas
Posts: 8,009
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by botsigLS1
I realize this is an older post, but there is a New Sponser "GMMG". They have GP going till Nov 30 for those interested. One of the Best if not the Best chambered exhaust ever. Get'em while their HOT!!!
, put simply botsigLS1 = "white" "LS1" - yeah not so original