Press a button and unleash hell.
Romanian boutique exhaust maker Kline Innovation make some of the best-sounding exhausts for some of the best performing cars in the world. It recently created an Inconel valvetronic race exhaust for a Porsche 991 Carrera and this video short will give you some idea of just how sublime the exhaust note is. The valvetronic system means that while cruising, the exhaust can be turned down to an almost silent purr. But at the touch of a button, an epic race car engine note can be unleashed.
As an added bonus, presenting the exhaust is one seriously gorgeous brunette who's Porsche we believe this belongs to.