Bill's Muffler & Brake in Duluth, MN provides top-rated automotive service and repair, specializing in Brake systems and muffler service. Call us today for your next service appointment at 218-727-4745 Bill's Muffler & Brake in Duluth, MN provides top-rated automotive service and repair, specializing in Brake systems and muffler service. Call us today for your next service appointment at 218-727-4745