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Old Nov 21, 2007 | 11:23 PM
  #1  
chevguy86's Avatar
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what is everybodys opinion on the gmmg chambered exhaust and on true duals this is not a daily driver so noise is not that big of an issue i just dont want anything that sounds too annoying any help is appreciated!
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Old Nov 21, 2007 | 11:39 PM
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Stock Manifolds/Cats + GMMG = Good
Longtubes + Cats + GMMG = Better
Heads/Cam + LTs + Cats + GMMG =
Longtubes + ORY + GMMG = A bit raspy but loud

It all depends on the route you go with your car and how much coin you want to drop on parts. Lowering your car? Stick with a Y-pipe setup IMO. Not saying *SOME* (<--- read SOME) true duals can't have good clearence, but most that I have seen hang a bit low for lowered cars.

Search http://www.ls1sounds.com and http://lsx.streetfire.net for some sound clips of both setups.
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Old Nov 22, 2007 | 12:02 AM
  #3  
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When I finally get around to doing my exhaust I will be going with the Bassani true duals in stainless with x-pipe. There's no exhaust places locally that I trust to do custom duals, based on the past work they did on my truck, so this bolt-on kit seems like the best way to go for me.

Plus I have read on here that it outperforms some catbacks by as much as 15 hp at the wheels.
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Old Nov 22, 2007 | 12:12 AM
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I have GMMG with cats and will never change.
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Old Nov 22, 2007 | 04:59 AM
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TSP duals dumped and love it. Good deep sound. Not too bad just crusing but pretty F*$%@ng loud during playtime. Mine is also not a dd. Just a weekend here and there.
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