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Old Aug 6, 2009 | 09:55 PM
  #1  
blackout 09's Avatar
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From: north carolina
exhaust

i was wondering how do think a 3" exhaust would sound on a 08 cobalt coupe be honest let me know because i have a 2.5" exhaust now with a flowmaster and i was wondering would it make that much of a difference in sound thanks blackout 09
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Old Aug 7, 2009 | 12:24 AM
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007CobaltLS's Avatar
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From: Blaine, MN
You don't want to go any larger than 2.5" if you have a 2.2/2.4, unless you are turbocharged. You'll lose power, back pressure, and I would guess gas mileage. Sound I have no idea about.
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Old Aug 7, 2009 | 12:28 AM
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Maccoy316's Avatar
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From: Mountain Home, Idaho
agreed, 3 inch is too much for your car.
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