A naturally aspirated engine needs lots of money for little gains.
I have the IPD plenum + 74mm TBt on my 2.7l. and of course I noticed little gains.
More Air intake + gas + better exhaust = more power (that is a no brainer)
BUT don't expect a turbo kickin' in. Only subtile gains are possible.
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Original Owner | PORSCHE Boxster 2.7L (MY01) | Seal Gray
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