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Old 08-29-2015, 11:04 AM
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Default GMMG exhaust

Are these still available new or just the used ones on the market?

Thanks
Old 08-29-2015, 11:23 AM
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Think WS6 store has them
Old 08-29-2015, 12:52 PM
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Ws6store, hawks 3rd gen & Madhammer sell it.
Old 09-01-2015, 10:54 AM
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MadHammer is the actual manufacturer... Just throwing it out there.
Old 09-23-2015, 08:35 PM
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x2. the guy who runs Madhammer built them in the 2000s for the GMMG built cars. These catbacks are much cheaper these days without the GMMG name tag.
Old 09-24-2015, 01:01 PM
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And they sound badass!
Old 09-24-2015, 02:16 PM
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Had a few friends order them directly from the source (madhammer). Website is a bit crude but the guy gets it done.
Old 09-24-2015, 09:13 PM
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Too bad he won't fab up a true dual version.
Old 09-29-2015, 04:45 PM
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I picked up the cats/y-pipe/merge for $250 used and Madhammer has the exhaust for ~$625 shipped






http://madhammer.com/pages/mad_hamme...2-02_cama.html

I went from TSP duals (no cats - dumped) to GMMG & anticipated the change, so I took a bunch of before/after in the same place without changing anything else.

Setups:
TSP- Pacesetter LT's, x-pipe, bullets, dumped before axle

GMMG - Pacesetters, magnaflow high-flow cats, late model y magnaflow merge, GMMG

TSP outside garage

GMMG outside garage

TSP inside

GMMG inside


Now, I wish I had the TSP inside the car, but my gopro was acting weird at the time.

GMMG inside short romp

GMMG under car

I was trying to get some driveline and pinion angle footage, but since I had the camera mounted on the sway bar, it didn't come out like I wanted.

I really wish I had the luxury of going with the Kooks originally. I HAD to get the exhaust done before I could register the car & couldn't afford the $$ at the time. The GMMG has a touch of rasp that I'd rather not have, but it isn't as bad as the drone the TSP had (angled down, not out).
Old 09-30-2015, 01:19 PM
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Tip angle makes or breaks the sound of the TSP duals.


Having said that, you couldn't GIVE me a Kooks TD's to replace it. TSP TD's dumped for me.
Old 09-30-2015, 01:36 PM
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Originally Posted by dr_whigham
Tip angle makes or breaks the sound of the TSP duals.


Having said that, you couldn't GIVE me a Kooks TD's to replace it. TSP TD's dumped for me.
Yeah, PO had them straight down & damnit was it obnoxious.
I noticed that the new exhaust corked it up a bit & she's not a rev-happy as she once was, but I don't have neighbors giving me the stink eye like they were.


Unfortunately, I have emissions to pass as well (although there are ways around that) Ultimately the PITA - Benefits ratio is out of whack.



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