Porsche"s new exhaust has saved the 9,000rpm flat-six

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Written by Stephen Dobie
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Porsche launched the 911 Speedster this week, effectively a swansong for the old-gen 911 and with the 991.2 GT3"s howling 4.0-litre flat-six sitting pride of place in its rump. It"s a stupendous engine, revving to 9,000rpm and making one of the very greatest noises on earth as it does so. As a reminder that naturally aspirated engines are often more fun than turbos, it"s as stark as they come. Happily, Andreas Preuninger head of Porsche"s GT-badged cars all but confirmed this isn"t the engine"s swansong, with much of the thanks going to a clever new exhaust system. It incorporates a particulate filter, to lower the car"s emissions, but thanks to the fastidiousness of Porsche"s engineers it"s somehow gained 10bhp and lost 10kg, too.

Date written: 10 May 2019

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