Bavsound Coaxial Stage One BMW Speaker Upgrade for E91/E92/E93 Coupe/Convertible with Base Audio F22 240 B58 Some of the developments underway

Some of the developments underway include: Error reporting to and from factory ECU for unparalleled safety

69 GPM / 6

- Cold start cat heat cycle and cat efficiency check removed (for off-road use)

Datalog sharing and charting without a need to upload to 3rd party websites or apps using the mobile app or web browser

For more product details see the specifications tab Specifications

Bavsound Coaxial Stage One BMW Speaker Upgrade for E91/E92/E93 Coupe/Convertible with Base Audio F22 240 B58 Some of the developments underwayGET UNBELIEVABLE, CRYSTAL CLEAR SOUND. JUST BY REPLACING YOUR BMW'S SPEAKERS We took your factory BMW speakers and re engineered our upgrade for one thing: clarity. So you can simply swap your original speakers for ours without changing anything else in your audio system, and the result is smooth, natural, yet unbelievably detailed reproduction of your favorite music. PLAY YOUR MUSIC LOUDER. AND ENJOY EVERY NOTE: We engineered the Stage One speakers