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Finally Installed My GMMG catback

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Old Apr 7, 2012 | 04:08 AM
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Default Finally Installed My GMMG catback

Well after about a 6 hour battle with grinding off welds, running here and there for exhaust clamps and trying to get the fitment right, I finally got my GMMG catback on and got to go for a drive. I took a few videos of idle and a drive by and I have to say, I F*&^ING LOVE IT!!! I thought it was going to be annoying but I dont find it annoying at all. Just figured I would share the vids and pics to get some feedback. Here ya go guys and gals.

The pics





And here is a video of the car as it sits now with the Magnaflow exhaust. (Before GMMG)

http://s963.photobucket.com/albums/a...t=be33f033.mp4

And here are the vids with the GMMG.

http://s963.photobucket.com/albums/a...t=52da8970.mp4

http://s963.photobucket.com/albums/a...t=89af540a.mp4

The drive by wasnt to loud because I didnt want to make a scene in front of my dads shop lol I only went up to about 3000 RPM's
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Old Apr 7, 2012 | 07:16 AM
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That sounds pretty badass. Wonder how it would sound with a trex?
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Old Apr 7, 2012 | 08:57 AM
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Thanks alot man. I was expecting it to be crazy from what I read about people whining and complaining about it on here, but to my surprise I love it. I'm use to open headers on older cars and test firing big blocks on the test rand with just headers on so I somewhat knew what I was getting into.
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Old Apr 7, 2012 | 09:01 AM
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sounds B/A and I love the tips....hate my Magnaflow tips
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Old Apr 7, 2012 | 01:21 PM
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Nice! A lot of people do complain about rasp with it and headers without cats. You serm more than satisfied.
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Old Apr 7, 2012 | 03:48 PM
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Originally Posted by jthunderz28
Nice! A lot of people do complain about rasp with it and headers without cats. You serm more than satisfied.
I love its sound, and I dont find it to be raspy enough to modify it at all.
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Old Apr 7, 2012 | 04:24 PM
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Sounded mean on the drive by. I love it.
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Old Apr 7, 2012 | 07:40 PM
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sounds real mean man!
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Old Apr 7, 2012 | 07:56 PM
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Nice, I love my GMMG also...id pay the $900 to my door again without hesitation. My OPINION, best damn cat-back you can buy for the 4th-gen.. I've received nothing but compliments. Favorite mod by far...Stock manifolds and y.. and it sounds the best at 4000rpm and above. I will never put another muffler behind a Gen-III small block!!!!! Period...
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Old Apr 7, 2012 | 08:28 PM
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Nice install and sounds great. Probably the best sounding catback IMO.
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Old Apr 7, 2012 | 09:41 PM
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very nasty, well played sir
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Old Apr 7, 2012 | 09:59 PM
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Sounds good. Does it sound better than a Corsa? would you say?
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Old Apr 8, 2012 | 11:22 AM
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Originally Posted by WS6 What
Sounds good. Does it sound better than a Corsa? would you say?
Thanks for all the kind words guys. As for the sound compared to a corsa, I really cant compare it because I have never heard the corsa on anything but a bolt on LT1 and it did sound good. Its not even really comparable to the deepness of the gmmg, however.
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Old Apr 8, 2012 | 12:15 PM
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Originally Posted by WS6 What
Sounds good. Does it sound better than a Corsa? would you say?
I've had both and the GMMG is by far better sounding than a Corsa, in my opinion. Not saying the Corsa sounds bad, the GMMG just sounds better in a meaner, angrier way.
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Old Apr 9, 2012 | 06:18 PM
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Originally Posted by bramlok
i've had both and the gmmg is by far better sounding than a corsa, in my opinion. Not saying the corsa sounds bad, the gmmg just sounds better in a meaner, angrier way.
^^^absolutely!!!
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Old Apr 9, 2012 | 07:42 PM
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Loud and raspy, love it.
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Old Apr 9, 2012 | 09:35 PM
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Originally Posted by 95LTXZ28
Thanks for all the kind words guys. As for the sound compared to a corsa, I really cant compare it because I have never heard the corsa on anything but a bolt on LT1 and it did sound good. Its not even really comparable to the deepness of the gmmg, however.
Originally Posted by Bramlok
I've had both and the GMMG is by far better sounding than a Corsa, in my opinion. Not saying the Corsa sounds bad, the GMMG just sounds better in a meaner, angrier way.
Sorry for thread jacking, but just got a 02 trans am, w/ a flowmaster. Do not like it, way to quite. Tried listening to vids of exhaust, and yours just sounds great. Its what im looking for. Ive had corsa before, but on a 04 gto modded and loved it. But that was true duals as well. Im trying to find that sound again.

That mean, deep growl scare you children when you punch it sound. ha ha.

Chance of any more clips of it?
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Old Apr 9, 2012 | 09:40 PM
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damn. only if that catback wasnt so expensive. it sounds so badass. i am putting magnaflow on my car now. damnitt. well good thing it was slightly used and only cost me $150
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Old Apr 9, 2012 | 11:01 PM
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Originally Posted by WS6 What
Sorry for thread jacking, but just got a 02 trans am, w/ a flowmaster. Do not like it, way to quite. Tried listening to vids of exhaust, and yours just sounds great. Its what im looking for. Ive had corsa before, but on a 04 gto modded and loved it. But that was true duals as well. Im trying to find that sound again.

That mean, deep growl scare you children when you punch it sound. ha ha.

Chance of any more clips of it?
Hey man no problem, your not thread-jacking at all and yeah I will be taking a few more videos this weekend coming when I get someone to video. Im going to do a few in cars idling, driving, and jumping on it and a bunch of the same outside the car. Ill probably post them in here to keep the thread alive for people to hear the exhaust.
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Old Apr 9, 2012 | 11:02 PM
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Originally Posted by autogeek23
damn. only if that catback wasnt so expensive. it sounds so badass. i am putting magnaflow on my car now. damnitt. well good thing it was slightly used and only cost me $150
Yeah man I sure as hell wasnt buying this exhaust new, I picked it up used from a member on here for $450. All it needed was a good polishing and you can see from the pics how it looks now.
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