You can get quite a lot of power out of these newer direct injection fours. Mazda for example: "The 2.3-liter DISI engine produces 270 horsepower at 5,500 rpm and 280 lb-ft of torque at just 3,000 rpm." Porsche ought to be able to top that!
It's probably a bit lighter than a 6-cyl too.
-james
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'01 Boxster S, 51k miles
'05 Mazda 6 Grand Touring Wagon
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