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The experts in perfect-fit speaker upgrades for BMWs unveil the most cost-effective, yet best quality option to get the most out of your music in your new M3 / M4.

Atlanta, GA (August, 2014) – There's no denying the visceral power of the all new M3 & M4, or the fact that it may very well be "the ultimate driving machine."  But while that may be true, even with the upgraded Harman Kardon audio system, the M3 and M4 just aren't the ultimate listening machine. But they can be; the engineers at Bavsound have created an audio solution specifically designed for your BMW M3 or M4 to ensure the perfect fit and the finest sound quality available in the aftermarket at a reasonable price: the Stage One Speaker Upgrade -- and it's in stock and shipping now. What is the Stage One? The Bavsound Stage One speakers produce a higher quality sound and a wider range of the bass and treble thanks to coated natural fiber drivers and silk tweeters that remain distortion free at higher volumes and provide accurate, natural sound. The Stage One kit features pre-installed plug-and-play connectors, factory-matched impedances and custom-molded baskets and fit exactly like the factory system utilizing all of the factory fittings, for a sound that you can enjoy for years to come, or easily convert back to stock on a leased vehicle. BAV_S1_F10-F30_HK_MAIN “We love music and we love our cars,” said engineer and Bavsound Co-Founder Jason Seaver. “From the factory, car audio systems weren’t designed to sound great, they were designed to sell cars. Our goal with the Stage One system is to give each BMW’s audio system a much more natural sound that each owner can live with every day, without the fatigue from an overly-bright factory system.” Bavsound’s Stage One speaker upgrade for the 2015 M3 and M4 is available starting at $799 for the complete speaker replacement system and all necessary hardware for an easy plug-and-play install. Packages can be found at www.bavsound.com and are now also available through leading BMW Tuner, Dinan Engineering, and its extensive North American dealer network.