Renntech is a Florida company established in 1989 by Hartmut Feyhl. It is best known for performance modifications of Mercedes-AMG automobiles.
Feyhl had spent 12 years at AMG well before the tuning company became part of Mercedes-Benz in 1999, serving as that company’s North American technical director and acting as a driving force behind the AMG Hammer—an iconic early 1990s automobile which was, for a time, the fastest production sedan on earth, with a top speed approaching 300 km/h.
Over the years, Feyhl and company have developed high-performance products for virtually all Mercedes-Benz AMG vehicles (including the commercial Mercedes-Benz Sprinter van). While most famous for Feyhl’s powerful engines, pizza-sized brake kits, and sporting suspension know-how, Renntech is in fact a full-line aftermarket supplier that offers everything from shift knobs and steering wheels to complete cars.