Thread: Mopar catback
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  #20 (permalink)  
Old 24 Jan 2004, 11:27 pm
ksquared11 ksquared11 is offline
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Join Date: Jun 2003
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Two 1 3/4" pipes will flow more exhaust than one 2.5". I am not an engineer but I think that the reason why the Mopar design includes the so called "octypipes" is to insure that the flow will be equal out both tail pipes.
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