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Thread: gmmg
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04-15-2010, 08:31 AM #1
- Join Date
- Aug 2009
- Location
- NJ
- Posts
- 60
Blue- 02 Trans Am WS6
gmmg
i ordered a gmmg exhaust i wanted to no what catted y pipe would go good with this catback. i plan on getting longtubes later on but for now it has stock exhaust manifolds. the car is a 02 ws6.
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04-15-2010, 10:00 AM #2
- Join Date
- Dec 2007
- Location
- Minnesota
- Posts
- 196
pewter- 2002 Tans am WS6 M6
Got a set of edelbrock shorty and SLP large diameter Y will fit in stock locations I would like to move it (cheap)
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04-15-2010, 10:41 AM #3
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04-15-2010, 12:20 PM #4
- Join Date
- Aug 2009
- Location
- NJ
- Posts
- 60
Blue- 02 Trans Am WS6
I was thinking of goin with QTP headers as far as the catted Y im not so sure dont no who i should run for that. Someone told me keep the original Y pipe on there wouldnt that rob me of alot of power?
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04-16-2010, 03:37 AM #5
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04-16-2010, 06:09 PM #6
i want the same exhaust but my problem is that i won't be able to afford the headers and Y pipe right now. i can afford the exhaust next month, but would it be bad or mess the exhaust up if i waited to put the headers and Y pipe? I mean if it was welded on that is. i just trying to figure out how to work this out i would really hate to buy something else for the mean time i would end up having to wait longer for the headers and Y Pipe.
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04-16-2010, 06:52 PM #7
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04-19-2010, 06:54 PM #8
Is GMMG still in business? i call Today and the Phone Number was Disconnected. i have also heard stories of people Ordering but not Receiving there Exhaust.
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04-20-2010, 09:22 PM #9
If you bought the gmmg enjoy it on your stock car. When you get headers invest in cats as it will be slp loudmouth loud.
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04-20-2010, 09:32 PM #10
Thanks for the heads up i have heard the sound bytes and i like it but haven't heard a whole lot of feed back on this system. cats for me will be a must when i get headers. For now i think this system will work it is on back order so we will see i might change my mind and go a different route. U have been extremely helpful thanks again.
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04-20-2010, 09:38 PM #11
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04-20-2010, 09:53 PM #12
- Join Date
- Nov 2006
- Location
- Broken Arrow, OK
- Age
- 49
- Posts
- 23,345
Pewter metallic- 2000 Camaro SS
Please don't provide direct links to non sponsors. Shoot a PM if you are trying to help someone out with the info instead
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04-22-2010, 10:38 AM #13
There are a lot better exhaust options out there that don't cost a house payment to purchase. Just sayin...
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04-22-2010, 02:57 PM #14
Do a google search for classic chambered powerstick exhaust same chambered mufflers for a lot less cash.
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04-24-2010, 06:19 AM #15
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04-24-2010, 06:25 AM #16
Ironically enough, the car will be quieter with longtubes than it would be with shorties..
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04-24-2010, 06:59 AM #17
Hooker Catback (my personal favorite and the cheapest of them all)
Magnaflow
SLP Dual/Dual (Quiet, but flows great)
SLP "2 on the left" (One of the best flowing, also sounds great)
There's tons of options. GMMG is a rip off. You're paying $800 for some aluminum pipes and 2 chambered glass pack style mufflers. Not too mention their customer service sucks.
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04-24-2010, 08:22 AM #18
i haven't listen to the sound of the Hooker catback. i like magnaflow but it seems a little to quite for me well on the clip that is. The SLP i think has to much of a raspy but i will listen to all of them again before my decision and i haven't bought anything from the company that sells them so i have no judgements about there costumer service. thanks for your input i like getting feed back on this it really does help.
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04-24-2010, 08:46 AM #19
One thing about "sound clips" on the net. Try to find clips of the car actually moving. Exhaust is going to sound totally different while under a load, as opposed to somebody just revving the piss out of the car while it sits still. I've heard tons of exhaust systems over the years that didn't sound that good while revving from a stop, but sounded great under WOT.
Also, I've done back/back testing on the Hooker before. On a 460rwhp heads/cam car, the Hooker muffler only gave up 5HP to the wide open cutout. That's pretty impressive for a $300 catback. Hooker also has a flange at the rear that can be unbolted, and you can drop the entire rear section of the catback for racing if you wanted to.
Some more food for thought.
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04-24-2010, 08:47 AM #20
- Join Date
- Apr 2008
- Location
- Madison, WI
- Posts
- 7,006
1999 Formula WS6 M6-sold- 2001 Silverado Z71
If your considering headers and y pipe later, then choose your catback wisely now. All LT headers and ORYs create some or a lot of rasp. The catback will determine how bad it is gonna sound. Magnaflow seems to be the catback of choice to eliminate most or all of the rasp. But there are others. There are also other methods to kill rasp, like adding an additional bullet muffler in the I-pipe or using a different muffler.
If you are gonna go with a catted y pipe in the future, then just about any catback will sound nice. The cats really knock down and kill the raspiness.
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