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Drivetrain (Cooper S) MINI Cooper S (R53) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain exhaust

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Old 12-20-2008, 06:49 PM
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exhaust
Okay, so i'm a newbie with a stupid question!! On most of the after market exhaust systems, is the smaller round "muffler" actually a cat or is it a resonator of some sort?

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  #2  
Old 12-20-2008, 09:07 PM
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If talking about the MCS, there is a resonator in the middle of the exhaust between the cat and the Y pipe that splits off to the two rear mufflers (some aftermarket exhausts only have one rear muffler).
 
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Old 12-20-2008, 09:13 PM
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Yes, talking about a MCS, dual mufflers. Is it any big deal if you do not run the resonator?
 
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Old 12-20-2008, 09:18 PM
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no it will just be louder
 
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Old 12-20-2008, 09:24 PM
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Old 12-20-2008, 10:32 PM
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No resonators=really loud
 
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