so i just installed it and it sound like a beast. and yea i know its big money but i been drooling to have one for years so I broke down and bought it. i had a catco cat 9118 and the gmmg system put on by the exhaust shop. Before the gmmg i had a stock exhaust on the car and wanted to wake it up alittle. here car some pics of it. enjoy

 

very cool. i guess it costs money to be different.

 

did it take you awhile to recieve your exhaust system

 

oh yes it did placed the order on april 19 recived it may 12. every time i called they said there out of exhaust and need to make more. but well worth the wait. im about to go out with my brother to shot some video of it.

 

congrats! i guess im lucky as i got mine in 2 days. it wouldnt surprise me though if they dont have a ton of money tied up in pre made systems right now with the way the economy is....

i have a link in my sig to hear my gmmg

 

post the youtube we want to hear it.
and how long is each of the chambers? inside not outside.
and what is the inside of the pipes?
and post the youtube of it we want to hear it.
good for you.

 

what is your "SIG"?
ok i found it - still dont know what a "sig" is but nice sound. i found it under "my car" i hope that neighbor whose window was moving in and out 4 or 5 inches is a close friend.

 

He was referring to his "Signature" or Sig.

 

it was under "my car" not a signature.
but i found it and it sounds great.
i hope mine sounds close to that good.

 

hey kkings did not notice it was you i was giving crap too.
how goes it up there?
that sounds pretty good - i want to know how long the chambers are - i just got a 31 inch chamber with a 3 inch internal hole and i expect it will be even louder than that.
im a little worried about killing that 95 db law we have here.

 

well i have it on youtube. But im having a hard time getting the link up so just type in 1989 trans am gta with gmmg exhaust it should come right up. we made 4 videos of it but there was a train next to us the whole time so it messed up the video alot. so maybe tomarrow i will get some better video.

 

Why is it necessary to "give crap" in the first place? I was merely informing you that "sig" meant signature and that the link "my car" was in his signature.

There's no need get worked up about it.

 

Damn, I wanted one as well but way to much money for tubing especially since a lot of people just buy chambered mufflers and do their own kit for cheaper. BUT, dont let that kick you down, I want to hear this badass exhaust. Only a few videos are up with out SBC motors and are usually of the worst quality.

@ tony_cogliandro- When you see that SOLID dash line below someones post that is their signature.