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3" Y Pipe or 2.5"

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Old Jan 9, 2009 | 07:55 PM
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DABLUE
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From: HOUSTON
Default 3" Y Pipe or 2.5"
Im fixin to install a y pipe on my gmc 1500 6.0 truck an just wondering wats better 2.5" or 3" ??????? I have the LT Headers on already
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