2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

exhaust question

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Old 03-16-2009, 04:49 PM
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exhaust question

What is the stock size for the ss sc?
Old 03-16-2009, 04:51 PM
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2.5 to the axle. axle back is 2.25
Old 03-17-2009, 11:11 PM
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What size is the gmpp exhaust? Im trying to decide i i wana get the touring or thr performance exhaust. Anybody have sound clips?
Old 03-17-2009, 11:14 PM
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the gmpp is 2.25...Magnaflow FTW
Old 03-17-2009, 11:14 PM
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http://www.youtube.com/watch?v=aAcDyZCuAew

Keep in mind this video doesn't do it justice either. I have the GMP Performance. Every time I get on it I cream my pants. Nuff said.
Old 03-17-2009, 11:14 PM
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Go to the dyno section there is a vid of a cobalt stock dyno vs cobalt gmpp exhaust dyno. added 12 hp.
Old 03-17-2009, 11:23 PM
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Originally Posted by ChriSS/SC
http://www.youtube.com/watch?v=aAcDyZCuAew

Keep in mind this video doesn't do it justice either. I have the GMP Performance. Every time I get on it I cream my pants. Nuff said.
Did you lose any torque on the top end? I heard somebody say they lost some top end pull
Old 03-17-2009, 11:26 PM
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I don't see how that can even be possible. My top end improved (Not a crazy amount, but a bit) and the sound and feel is amazing. Don't pass it up man. Very underrated. I chose wisely when I bought mine. Not to say others arent good... Magnaflow comes in 2nd place in my book. GMPP ftw hands down.
Old 03-17-2009, 11:29 PM
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I see I was looking on youtube and there was one video with a ss with the perormance exhaust and the guy said he lost some top end torque..which i could see happening since its 2.25 versus the stock 2.5/ 2.25 combo. Did you do the airbox mod before or after the exhaust?

Oh and where did you find the aem airbox mod?

Last edited by LittleSilverSS; 03-17-2009 at 11:29 PM. Reason: Automerged Doublepost
Old 03-17-2009, 11:31 PM
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Ohh wait. You got me all wrong lol that's not my car that was just an example.. I really wouldn't worry about losing power because it wont happen. And like I said.. You will not find an exhaust that will satisfy your ears more than this one
Old 03-17-2009, 11:33 PM
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true ive been looking at a lot of clips and nothing sounds as good as the gmpp perf exhaust..and it doesnt cost as much as most of the others
Old 03-17-2009, 11:36 PM
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Originally Posted by XTC_916
Go to the dyno section there is a vid of a cobalt stock dyno vs cobalt gmpp exhaust dyno. added 12 hp.
are you talking about jonel's dyno? as the owner of the site he probably got a discount for posting huge dyno gains. take the lowest of the low, and the highest of the high. just like aftermarket companies would do. doesn't mean he gained 12 hp. realistically, you will gain about half of that with an exhaust on a cobalt, depending on other mods.
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