gmmg vs true duals
gmmg vs true duals Looking for some opinions on gmmg (madhammer) vs true duals.. Looking to add LT Headers, ORY and LS6 intake soon, but can't make my mind up on the exhaust!! I hate rasp so the gmmg would need a extra muffler in the I pipe. Would there be any difference in hp power gains?
Sound is everything to me so I want it to be wicked!!!
Future plans to a cam then heads on down the road.....
Let's here those exhaust set ups!!! GMMG or true duals.. we need details..
Sound is everything to me so I want it to be wicked!!!
Future plans to a cam then heads on down the road.....
Let's here those exhaust set ups!!! GMMG or true duals.. we need details..
Last edited by M-Z28; Jan 11, 2015 at 08:19 AM.
In the first video what complete set up are you running? LT,ORY,Cats, Chambered muffler in I pipe?
Sounded awesome!!
exhaust note is subjective to personal tastes , my opinion is different than the majority of posts here.
I had a bolt on a4 car with pacesetter long tubes/ory/gmmg and it was the raspiest droning mess I have ever heard , sounded great when getting on it but as far as driving normally it was terrible.
MY 6 speed bolt on car has qtp long tubes to true duals dumped at the axle no drone sounds great at all times aggressive but in a good way.
I also have another bolt on a4 car kooks long tubes/ tsp ory/ magnaflow stainless catback sounds excellent no drone/rasp as well.
the gmmg car had 273's that may have contributed to my poor opinion of the gmmg , it was easy to get it to "lug" the other cars have 342&373 gears
I had a bolt on a4 car with pacesetter long tubes/ory/gmmg and it was the raspiest droning mess I have ever heard , sounded great when getting on it but as far as driving normally it was terrible.
MY 6 speed bolt on car has qtp long tubes to true duals dumped at the axle no drone sounds great at all times aggressive but in a good way.
I also have another bolt on a4 car kooks long tubes/ tsp ory/ magnaflow stainless catback sounds excellent no drone/rasp as well.
the gmmg car had 273's that may have contributed to my poor opinion of the gmmg , it was easy to get it to "lug" the other cars have 342&373 gears
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During my research of the gmmg exhaust.. I've noticed that LT1 cars sound better than LS1 cars with gmmg.
Also Ls1 cars sound awesome stock with factory manifolds and cats, but insanely raspy with LT,ORY...
For a $650 system that has to modified with a extra muffler in the I pipe just to eliminate rasp, I'm think the best route would be true duals or stay factory with a cutout..
TPS rumbler mufflers suck... A$$
Any suggestions on a good chambered muffle for true duals?
Still wanting the opinions on gmmg just don't think it's the best route at the moment. Although as I'm typing this I'm changing my mind..LOL!! Picking an exhaust sucks
Also Ls1 cars sound awesome stock with factory manifolds and cats, but insanely raspy with LT,ORY...
For a $650 system that has to modified with a extra muffler in the I pipe just to eliminate rasp, I'm think the best route would be true duals or stay factory with a cutout..
TPS rumbler mufflers suck... A$$
Any suggestions on a good chambered muffle for true duals?
Still wanting the opinions on gmmg just don't think it's the best route at the moment. Although as I'm typing this I'm changing my mind..LOL!! Picking an exhaust sucks
TECH Apprentice
Joined: Jan 2006
Posts: 339
Likes: 1
From: America, f**k yeah!
I went with pacesetter long tubes, GMMG, and Magnaflow cats to get rid of the rasp. 10 years and I'm still happy. Nice fairly loud rumble, you can still hold a conversation in the car, and it doesn't sound like an old truck. Nice and loud when you get on it.
Think you could post a vid brother?
Post up vids guys let's hear those gmmg and true duals!!!! Please let us know your full set mufflers,cats, etc..
Launching!
Joined: Aug 2011
Posts: 216
Likes: 0
From: Kennesaw, GA
In my experience, GMMG sounds awesome with stock manifolds and cats. Raspy and whatnot with longtubes and no cats.
I have true duals with cats. Setup is:
1 3/4 longtubes, 3'' xpipe, 3" cats, 3'' piping, 3'' moroso spiral flows, run out of tailpipes, under axle. Tone is awesome, volume is moderate, zero drone/rasp. Can have a conversation in the car just fine, just need to talk a little louder.
http://youtu.be/kYayde3PFQY
I have true duals with cats. Setup is:
1 3/4 longtubes, 3'' xpipe, 3" cats, 3'' piping, 3'' moroso spiral flows, run out of tailpipes, under axle. Tone is awesome, volume is moderate, zero drone/rasp. Can have a conversation in the car just fine, just need to talk a little louder.
http://youtu.be/kYayde3PFQY
In my experience, GMMG sounds awesome with stock manifolds and cats. Raspy and whatnot with longtubes and no cats.
I have true duals with cats. Setup is:
1 3/4 longtubes, 3'' xpipe, 3" cats, 3'' piping, 3'' moroso spiral flows, run out of tailpipes, under axle. Tone is awesome, volume is moderate, zero drone/rasp. Can have a conversation in the car just fine, just need to talk a little louder.
http://youtu.be/kYayde3PFQY
I have true duals with cats. Setup is:
1 3/4 longtubes, 3'' xpipe, 3" cats, 3'' piping, 3'' moroso spiral flows, run out of tailpipes, under axle. Tone is awesome, volume is moderate, zero drone/rasp. Can have a conversation in the car just fine, just need to talk a little louder.
http://youtu.be/kYayde3PFQY
Question- Having the exhaust running under axle, what kind of issues does that cause?
For example: when jacking the car up wouldn't the rear end come down and damage or touch exhaust?
!!!!!!!!!