• That's what a broken exhaust sounds like, especially on a Porsche flat six. A properly designed one should not crackle or bang. Those are modern affectations of the Audi driving crowd with their bypass valves.
    An exhaust note should be smooth and refined, with a muted, perhaps slightly menacing note in the low numbers, hinting at the unbridled amounts of power yet to come. And it should rise gently to a shrieking crescendo when the revs rise.
    For your 911: https://www.youtube.com/watch?v=FAjxUtk0WJs

    A stonking Aston Martin: https://www.youtube.com/watch?v=i6_083S-CyA

    And a rather lovely sounding Jaguar XJ12C: https://www.youtube.com/watch?v=7TMgIkx40tI

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