Armytrix exhaust is an effective instrument for you, the Mercedes-Benz A250 owner, to harvest everything the German engineers intended for you to enjoy. Through our strategic approach to the designing and manufacturing processes, our system delivers the purest of sound and mesmerizing power that answer your every throttle. The valvetronic system offers a greater degree of personalized control. No longer are you limited to a single audio output, depending on your situations, you can alter the volume with a touch of a button. This is not some dark magic, but our desire to offer the best for you!