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Old 02-12-2009, 02:35 PM
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767Jockey 767Jockey is offline
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Join Date: Feb 2005
Cobra Make, Engine: Contemporary, FE, Tremec TKO 600
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Fred, Kevin -
I wish I could remember what thread it was on but a guy dyno'ed the difference between his factory supplied sidepipe mufflers and the new ones (either Stainless Specialties or Classic Chambered, I forget which), and the difference was about 100 HP !!!!!
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