TwinTurbo.NET: Nissan 300ZX forum - That all depends upon what you plan on doing in the future..
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Subject That all depends upon what you plan on doing in the future..
     
Posted by Shift_ on May 30, 2003 at 12:05 PM
  This message has been viewed 41 times.
     
In Reply To Re: Also if you dont have emissions to pass, get rid of all cats posted by 93SCTT on May 30, 2003 at 11:54 AM
     
Message ..with the car. I'm not sure what the exact dimensions of the stock exhaust piping is on the dps or the midpipes (I believe its something like 2 1/8"). Anyway, from what I've read, getting the split downpipes and 2 1/2" testpipes (instead of gutting all the cats) will free up a little more hp on a stage III car. If you plan on upgrading the turbos or running higher boost levels, say maybe 15psi and higher, Then the tp and dp are a must. However, gutting is free, accept for your time =)
=)

P.S. We've got emissions to pass here, and I'm still going catless within the next three months or so. The way I see it, if an eighteen wheeler can blow who knows what into the air, then why can't my Z go without catalytic converters.

     
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