TNTramair im the same guy who posted a comment on your video awhile back. Could you make another video. :mrgreen:

http://www.youtube.com/watch?v=05ZG0kacKek

GMMG on an '88 IROC with Edelbrock TES headers and no cat. Stock 350 TPI motor.

- Justin

thanx...i made a couple more last night cause i just got the new set up tuned so i was out cruisin. ill post up later on tonight.

wow that exhaust sounds great....

Sounds tempting! I wonder what their return policy is if I dont like the way it sounds?? The sales video does sound cool!

if you dont like the way a gmmg sounds then you need to sell your car and move into the import crowd. Theres no need to worry about returning it and if you dont like it put it up online and sell it and it will be gone within a week. Im getting mine soon.

I like that system and the way it sounds but the system is only 2 1/2". I already have a full 3" exhaust on the car now. So im on the fence about it. Stainless Works make a chambered exhaust for F-body's in full 3" but they only make it for 93 - 02 F-body's even though the third gens exhaust is just about the same I would have to change the hanger brakects to make it work and for over a $900 price tag Id probaly be better off going to mufflex and getting a complete system made up. I know they say the GMMG exhaust can handle alot of power but the guy's at mufflex seem to disagree on what diameter tubing is best for my engine set up.

I don't know about selling my car just yet. It would be real nice if the sales vid had a 350 with headers running their chambers.

Think of it this way the intermediate pipe is 3 inch and it splits into two 2 1/2inch pipes thats basically is equal to one 5 inch pipe. its been shown on a dyno that this ctback made 1hp less than a true dual set up. Dont let the two 2 1/2 inch tailpipes fool you. They get the job done. If they were 3 inch it wouldnt make to much of a difference. maybe 1 hp and 1hp is not gonna make you win a race.

I don't mind spending money on my car but I don't want to make a $1000.00 mistake either.

how is it a $1,000 mistake. Just buy the one with the basic tips for $772 shipped through pay pal.

Read the rest of the thread....earlier I posted a link to just what you are asking for...


2 2.5" pipes have no where near the cross-sectional area of a single 5" pipe.

5" pipe area = 19.635"

2 x 2.5" pipe area = 9.817"

2 x 3" pipe area = 14.137"

- Justin

For those interested i am trying to set up a group purchase for the gmmg catback. click link and if your a member post that you would like this.


http://www.ls1tech.com/forums/showthread.php?t=972696

Mathematics is my weakness