Thread: V-8 exhaust
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Old 01-20-2013, 02:07 PM   #5
wbdinger

 
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Drives: NSMNJW=2010 CGM 2SS/RS LS3
Join Date: Dec 2009
Location: Exshaw Alberta Canada
Posts: 1,169
Unless you are going tobe super charged or major boltons eg: heads,cam, intake ect then 3" would be benificial.
If your keeping it close to stock the factory 2.5" is plenty even with long tube headers and CIA.

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