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Discussion Starter · #1 ·
Replacing the exhaust system on my 280ZX next month and wanted to know
if dual exhaust will produce more H.P. or is it a waste of time. Going to replace
it with 2.5 piping,new free flow catback, and muffler.
 

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> Replacing the exhaust system on my 280ZX
> next month and wanted to know
> if dual exhaust will produce more H.P. or is
> it a waste of time. Going to replace
> it with 2.5 piping,new free flow catback,
> and muffler.

In my opinion, a dual exhaust would be unnecessary. One pipe, with free flowing components should be adequate. A bit of back pressure is necessary.

Ken
 
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