Exhaust question
12-20-2009, 11:52 AM
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Exhaust question My 99 SS has a factory SLP duel/duel exhaust. It sounds great but I really like the sound of the GMMG exhaust. Other than the sound, would I see any gain in performance?
12-20-2009, 12:36 PM
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More than likely no. A catback is just a catback the difference if there is any at all would be like 2 to 5rwhp unless it's a flowmaster which won't be much better thant the factory exhaust but you have a good flowing system. But I love my GMMG people say what they want to about them but I love the tone it produces.
12-20-2009, 12:59 PM
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