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#2: 02-25-2013, 09:24 PM
 
 mwiener2
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Title: Trunk Monkey Chief
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Car: 2005 Rocketback, 2010 Clown Car
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Aftermarket cats won't pass CO emissions. Not the first time, let alone 3 years later.

You want a GESi cat fabbed onto your downpipe if you want a no hassles exhaust. Aftermarket cat that comes on DP (COBB for instance) costs about $75. A GESi cat costs about $430, but it actually has the precious metals in it to be a real cat and pass emissions. A GESi cat on your car makes it 100% EPA and Street legal and there is little to no loss in HP.


Contact 5250 Performance in Longmont.
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