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Gmmg/mad hammer cat back?

This is a discussion on Gmmg/mad hammer cat back? within the External Engine forums, part of the LSx Technical Help Section category; I just picked up a 98 z28 and want the same exhaust I had on my 93 z28. Too me ...

  1. #1
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    Gmmg/mad hammer cat back?

    I just picked up a 98 z28 and want the same exhaust I had on my 93 z28. Too me this is the best sounding exhaust I've ever heard on a sbc. Does anyone know where I can find it?

  2. #2
    Member DarrenWS6's Avatar
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    Silver Metallic
    2000 Trans Am WS6

    2000 Trans Am WS.6 M6

    SLP lid & bellow w/ K&N, GMMG catback w/ Corsa Clones, UMI SFC, UMI Adj. Panhard, UMI Adj. TQ arm w/ relocation kit, Eibach prokit, Bilstein HDs, Nitto NT555s, skip shift elim, whiteface overlays, 20% tint, matte black decal/overlays

  3. #3
    Senior Member Naaman's Avatar
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    Cayanne
    98 Z28 Vert M6

    Score! That's way less expensive than I was expecting!
    Lid, Throttle Body, LS6 Intake, Heads, Cam, Magnaflow, LS7 Clutch, SFCs, STB, Panhard Bar, Strano Springs, Hollow Sway Bars, Poly/Roto LCAs, Konis, MGW Shifter

  4. #4
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    Black & Blue
    '02 WS.6 / '07 Suburban

    The GMMG system on Darren's car sounds amazing.

  5. #5
    Senior Member Naaman's Avatar
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    Cayanne
    98 Z28 Vert M6

    Agreed. It's what I'd like to replace my broken magnaflow with.

  6. #6
    Member DarrenWS6's Avatar
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    Silver Metallic
    2000 Trans Am WS6

    I sure love it. Deep and aggressive even on manifolds and cats.



    Even better with headers and OR/Y.


    Quote Originally Posted by pajeff02 View Post
    The GMMG system on Darren's car sounds amazing.
    Why thank you!

  7. #7
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    the best sounding LS car I've ever heard was a cammed GMMG......actually.....that may be the 2nd best now. My bro's supercharged GTO sounds pretty bad ass through 1 7/8" headers and a 3" magnaflow.....sounds like a bomb going off from outside the car when he hits it. Loudest exhaust I've ever heard. If I were doing a catback tomorrow though it would be the madhammer/gmmg exhaust.
    Quote Originally Posted by Mean Green Z28 View Post
    Don't worry about understanding women. Women understand women, and they hate each other

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