GMMG.......
Thread Starter
Joined: Apr 2003
Posts: 652
Likes: 0
From: Deer Park (Houston),Tx
GMMG....... I just wanted to know if this catback would sound good with Hooker LT's with no catz. I don't know if it will be too 
loud with my setup. I appreciate any feedback that anyone gives me.
thanx,
jason
loud with my setup. I appreciate any feedback that anyone gives me.thanx,
jason
TECH Fanatic
Joined: Feb 2002
Posts: 1,782
Likes: 0
From: Friendswood TX
Re: GMMG....... I have GMMG with macs and a ORY. Its really raspy so i put a bullet muffler in the I pipe. When you get the GMMG I want to hear the exhaust, because I am going to buy a set of hookers. and I live close by.
11 Second Club
Joined: Apr 2002
Posts: 526
Likes: 0
From: Waldorf, MD
Re: GMMG.......
I have the GMMG cat back with my SLP LT and ORP and it is f-ing loud.
Most people like it, sorta sounds like a Nascar car at WOT...
Most people like it, sorta sounds like a Nascar car at WOT...
Re: GMMG.......
That rasp is from the Macs, only headers out there to do that. Switch to a good set of long tubes and take off the bullit. listen to it scream then 
Trending Topics
Re: GMMG....... I have a friend with headers ORY and an open borla. To me its pretty quiet untell he gets on it, then all hell breaks loose. And this is with a 3200 stall too. Would the GMMG have the same qualities as this. Would it remain fairly quiet if it was kept under 2500rpm.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Fanatic
Joined: Nov 2001
Posts: 1,098
Likes: 0
From: I-L-L-I-N-O-I-S
Re: GMMG....... Guys, ANY aftermarket cat-back system will rasp without cats on an LS1. Some just do it worse than others. Doesn't really have much to do with the headers, but rather the offroad pipes. BTW, the GMMG with LT headers and highflow cats is without a doubt the best sound I've ever heard at WOT on an LS1. 
Incredibly muscular yet completely clean sound quality to it. 
Cats make ALL the difference IMO(as the GMMG is as good as it gets this way).
BTW, the GMMG with LT headers and highflow cats is without a doubt the best sound I've ever heard at WOT on an LS1. Incredibly muscular yet completely clean sound quality to it. Cats make ALL the difference IMO(as the GMMG is as good as it gets this way). 
TECH Fanatic
Joined: Jun 2002
Posts: 1,124
Likes: 0
From: kuwait
Re: GMMG....... Before one/two month ago someone post a video for two cars one of them GMMG system with Hooker LT and the other car GMMG with manifold, you can search it.
I have video for my car with custom made flange cutout 2.5" and Hooker LT, ORY, inshalla soon i'll post the video
Good luck
I have video for my car with custom made flange cutout 2.5" and Hooker LT, ORY, inshalla soon i'll post the video
Good luck
TECH Resident
Joined: Jun 2003
Posts: 862
Likes: 1
From: Los Angeles, CA
Re: GMMG.......
They sound better with cats, but a bullet in the I pipe or for a different sound - a chambered section from stainlessworks in the I pipe will help a lot!