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> exhausting the exhaust topic...
post Feb 1, 2008 - 3:28 AM
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99Celica



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I've been reading up on the size piping everyone uses and I can't decide between 2.25 and 2.5. People argue both ways. My car has a SRI and header. Which will give the better overall performance? Any additional imput is helpful too. Thanks
 
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post Feb 1, 2008 - 12:59 PM
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Jaws4God



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I think there really isn't much difference between 2.25 and 2.5.. I have heard that 3 is a little big for a NA engine..

but what you have to consider is that NA engines need back-pressure.. so too small and the engine can breathe, too big and the engine looses power from no back pressure.

This post has been edited by Jaws4God: Feb 1, 2008 - 1:00 PM


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~Daniel~ No Longer Celica Owner.. moved on to a 03 WRX-EJ207

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