Mann Hummel Symposer [podcast]
TTAC receives a great deal of excrutiatingly boring PR copy on a daily basis. When I caught sight of this sexy PR prose poem, I had to know more: 'The purely mechanical device, made up of four chambers, attaches directly in front of the throttle body. A movable flap senses pulsations generated when the engine vibrates due to acceleration. As the flap moves, via a spring-mass system, it changes the high-frequency whistle of the turbocharger to the more muscular tone that is the natural byproduct of the combustion process.'