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GMMG Muffler

This is a discussion on GMMG Muffler within the External Engine forums, part of the LSx Technical Help Section category; Few questions. Is $700 the cheapest I can get one of these? Are there any distributors other than the Georgia ...

  1. #1
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    1999 30th Anniversary T/A

    GMMG Muffler

    Few questions. Is $700 the cheapest I can get one of these? Are there any distributors other than the Georgia shop? I thought there was a post about a group purchase made by a few members. If so, was this a one time deal? Thanks for any help.

  2. #2
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    black
    2001 Z28

    there are no ther distributors
    GMMG Exhaust, Dynatech Headers, AFR 205's, Custom 228 Cam, Ported TB, SLP CAI.

  3. #3
    Madeche Vision...soon The Scientist's Avatar
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    Hey, Lake Charles in the house!!! Cool pic taken at the Civic Center. I remember meeting up there all the time. i had to move a few years ago for graduate school but will be in town this coming weekend. Anything happening with the muscle car scene?
    Sorry but there are only two ways to get GMMG. New for $700 or hope to find a used one online.
    Might I suggest Corsa? Thats what I have and got it cheap from Jeg's. It really is whisper quiet when cruising on the highway but loud and mean at WOT.

  4. #4
    Member 01camaross's Avatar
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    yeah $700 is the cheapest you can get it new for. but once you get it you'll know it was worth every penny.

  5. #5
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    Thanks guys. I tend to be an impulse buyer. So far no one has convinced me to not go GMMG. Corsa is my next choice Scientist. Vette owner I work with has Corsa setup. He put it to me best; He said "you live, then you die". Placing order today.

  6. #6
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    Quote Originally Posted by RamAIR23 View Post
    Thanks guys. I tend to be an impulse buyer. So far no one has convinced me to not go GMMG. Corsa is my next choice Scientist. Vette owner I work with has Corsa setup. He put it to me best; He said "you live, then you die". Placing order today.
    i think TSP TD's is best

  7. #7
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    Here is a vid of my var at the track with GMMG and Kooks headers

    http://www.fototime.com/D54BFF70402FDF9/conv.wmv

  8. #8
    SS#430 1 of 74 7camaro7's Avatar
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    02SS6spd VERT!

    any body got an xpipe on their 98-02 fbody? so far I think gmmg is the best too! If you're in the area they'll install for the $700
    Last edited by 7camaro7; 11-08-2006 at 08:25 AM. Reason: adding something

  9. #9
    Member slade8200's Avatar
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    anyone know how much power (if any) the gmmg muffler adds to a stock ss?

  10. #10
    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by slade8200 View Post
    anyone know how much power (if any) the gmmg muffler adds to a stock ss?
    a couple of h.p at best
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  11. #11
    Old LS1.com member bluethunder2's Avatar
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    GMMG when compared to open headers has only lost about 3 hp. on a car that was putting over 500 rwhp out. Tested by Vengeance Racing/GMMG.

    Again, you can only purchase through GMMG or used. They are currently having a group purchase. Check the other LS1 board or call them.

    If you don't like that, you could always use a set up similar to mine.
    http://video.google.com/videoplay?do...28271875648721
    http://video.google.com/videoplay?do...72464937866944
    Last edited by bluethunder2; 01-08-2007 at 07:56 PM.

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