LS1TECH - Camaro and Firebird Forum Discussion

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-   -   GMMG Catback or Hooker LT's? (https://ls1tech.com/forums/generation-iii-external-engine/1044290-gmmg-catback-hooker-lts.html)

greg_74 Jan 6, 2009 07:54 PM

GMMG Catback or Hooker LT's?
 
So I'm at the point where I'm thinking of either getting some new Hooker coated LT's with a TSP ORY or picking up a used GMMG catback, thoughts? Btw, I care more about sound right now but performance and flow is nice too. :D Also, I will probably eventually getting both but right now I don't have that much money and shouldn't really be spending it modding the car but oh well haha. Also, the GMMG catback would be without the tips and have my CME tips.

Sicko Jan 6, 2009 08:22 PM

You will never get the sound you want with out LT's. Take my word on it.

7camaro7 Jan 6, 2009 08:25 PM

you can get headers at a pretty good price anytime. used aka(discounted) gmmg chances don't come to everybody everyday! get the gmmg and lt it later

NHRAMAN Jan 6, 2009 09:41 PM


Originally Posted by Sicko (Post 10796763)
You will never get the sound you want with out LT's. Take my word on it.

:nod: :devil: :nod:

Gregorya24 Jan 6, 2009 09:45 PM

true duals.........gmmg sounds like ass

TORCHD 02 TA Jan 6, 2009 09:46 PM

I have GMMG. Click soundclip link in my sig..

You will want to run a catted y with the GMMG. I have a cam and it is raspy i how ever do not mind it. But i will be adding a powerpack muffler in the I pipe

67SS&99SS Jan 6, 2009 11:05 PM

get the headers, especially if you have a factory SLP exhaust. you'll gain a lot more power from the longtubes.

EW1 Jan 7, 2009 06:51 AM

get the headers

greg_74 Jan 7, 2009 11:06 AM


Originally Posted by TORCHD 02 TA (Post 10797376)
I have GMMG. Click soundclip link in my sig..

You will want to run a catted y with the GMMG. I have a cam and it is raspy i how ever do not mind it. But i will be adding a powerpack muffler in the I pipe

So thats with a ORY in the sound clips then? I think that sounds pretty badass. How bad is the interior drone going down the highway with that setup and is your car an A4 or M6? I want my car to be loud at idle and when I'm cruising around getting on it, but don't want it to be annoying on a couple hour trip down the highway since it is my DD in the summer.

TORCHD 02 TA Jan 7, 2009 12:15 PM


Originally Posted by greg_74 (Post 10800210)
So thats with a ORY in the sound clips then? I think that sounds pretty badass. How bad is the interior drone going down the highway with that setup and is your car an A4 or M6? I want my car to be loud at idle and when I'm cruising around getting on it, but don't want it to be annoying on a couple hour trip down the highway since it is my DD in the summer.

That idle clip was with my custom 3" O/R Y. Sounds great at idle. On the highway there is some drone if i have the t-tops on and windows up. You get the drone around 2k RPMs. It is bearable. My car is an M6. Trust with the GMMG it is loud everywhere. Espically WOT. I was racing a buddy of mine, he was at my rear quarter panel, he gaave up b/c the GMMG was so damn loud. he was deaf for couple mins :lol:

Here are some clips driving the GMMG
http://i70.photobucket.com/albums/i9...h_MOV03321.jpg
http://i70.photobucket.com/albums/i9...h_MOV03322.jpg
http://i70.photobucket.com/albums/i9.../th_InCar1.jpg
http://i70.photobucket.com/albums/i9.../th_InCar2.jpg
http://i70.photobucket.com/albums/i9...ftingGears.jpg

greg_74 Jan 7, 2009 12:35 PM

I bet your neighbors love you from some of those clips haha. Is that with just the GMMG or with the setup you have now? Also, yours is going to be louder most of the time with the M6.

TORCHD 02 TA Jan 7, 2009 12:53 PM


Originally Posted by greg_74 (Post 10800861)
I bet your neighbors love you from some of those clips haha. Is that with just the GMMG or with the setup you have now? Also, yours is going to be louder most of the time with the M6.

In those vids that is my current set up:

QTP LTs + Custom 3" Y Pipe + Flowmaster Merge + GMMG C/B

greg_74 Jan 7, 2009 01:01 PM


Originally Posted by TORCHD 02 TA (Post 10800989)
In those vids that is my current set up:

QTP LTs + Custom 3" Y Pipe + Flowmaster Merge + GMMG C/B

Ok I'm thinking of going with Hooker LT's + TSP ORY + Stock SLP dual/dual catback for now and then GMMG later on. My roommate has QTP LT's on his Z right now with a stock Z catback but he is wanting to do true duals or magnaflow catback.

Btw whats to gain from a Merge? And don't some Y's have them built in?

Sicko Jan 7, 2009 02:18 PM


Originally Posted by greg_74 (Post 10801040)
Ok I'm thinking of going with Hooker LT's + TSP ORY + Stock SLP dual/dual catback for now and then GMMG later on. My roommate has QTP LT's on his Z right now with a stock Z catback but he is wanting to do true duals or magnaflow catback.

Btw whats to gain from a Merge? And don't some Y's have them built in?

Good man, get them LTs asap.

RacerXLs1 Jan 7, 2009 02:36 PM

Yea you could always get some coated pacesettlers and still get the gmmg... Theres were some kooks in the eastern section for 200 or 250 and they were 1 7/8.. Just food for thought..

LS1-NAVY Jan 7, 2009 02:40 PM


Originally Posted by greg_74 (Post 10801040)
Ok I'm thinking of going with Hooker LT's + TSP ORY + Stock SLP dual/dual catback for now and then GMMG later on. My roommate has QTP LT's on his Z right now with a stock Z catback but he is wanting to do true duals or magnaflow catback.

Btw whats to gain from a Merge? And don't some Y's have them built in?

better flow and less rasp

greg_74 Jan 7, 2009 02:47 PM


Originally Posted by LS1-NAVY (Post 10801813)
better flow and less rasp

You're talking about the merge correct?

Sharpe Jan 7, 2009 02:50 PM


Originally Posted by greg_74 (Post 10801040)
Btw whats to gain from a Merge? And don't some Y's have them built in?

Any X or H-pipe will work in true duals, because they're so "easy" to make right. But, I guess the Y-pipe is just a little harder to do well. So, a lot of people who make Y-pipes just buy the merge to make the job simpler. The Flowmaster merge is popular on this site.

greg_74 Jan 7, 2009 03:02 PM


Originally Posted by Sharpe (Post 10801892)
Any X or H-pipe will work in true duals, because they're so "easy" to make right. But, I guess the Y-pipe is just a little harder to do well. So, a lot of people who make Y-pipes just buy the merge to make the job simpler. The Flowmaster merge is popular on this site.

Ok so people just do it to make it easier and create a little better flow? Btw nice post count I have never seen anyone with posts near that much haha, not sure how you've pulled that off.

Flaring Afro Jan 7, 2009 03:18 PM


Originally Posted by TORCHD 02 TA (Post 10800697)
Here are some clips driving the GMMG

why does it say "true duals" above it if you have a Y?

gmmg no question, as long as its decently less than new. the catback is very rare, and even more rare to be for sale. save you $$$ in the end and will still be louder than stock. plus i would think stock would be raspy with lts.


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