TwinTurbo.NET: Nissan 300ZX forum - Going from 3" to 2.5" from the cats back is an option
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Subject Going from 3" to 2.5" from the cats back is an option
     
Posted by cherry on December 19, 2001 at 12:01 PM
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In Reply To Three inch stainless exhausts compared -- ? >>> posted by cherry on December 19, 2001 at 11:27 AM
     
Message since I could probably replace and sell the 2.5" catback in the future. It's not too much trouble replacing the catback. But i got 3" downpipes and highflow cats because I only want to install them once.

But what sort of penalty will I pay in terms of turbulence and flow restriction going to 2.5" after the cats? Noticeable or negligible?

     
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