Hartmut Feyhl is the Founder of RENNtech that is the premier Mercedes-Benz specialist and leading tuning authority for luxury European vehicles including Porsche, Audi, Bentley, Aston Martin and others. With a background of 12 plus years at AMG Germany, followed by serving as the Technical Director of AMG North America, Hartmut is regarding as the foremost authority on Mercedes Tuning in the USA. RENNTech's principle is "Performance without Compromise", a philosophy evident in their extensive line of high-performance products and customizations that include tuning solutions for AMG vehicles. Their comprehensive approach to tuning solutions with in-house design, engineering, and manufacturing capabilities their state-of-the-art engineering and equipment allows for proprietary tuning products of the highest standards.