About us

Performance without compromise.
This is the foundation upon which RENNtech has built their reputation.

Established in 1989 by Hartmut Feyhl, RENNtech has evolved and grown from humble beginnings into the foremost authority on luxury automobile performance tuning and offers complete tuning solutions for Mercedes Benz, Porsche, Audi, Rolls Royce, Bentley and other vehicles.

Over the years, RENNtech has developed high performance parts for virtually all Mercedes-Benz AMG vehicles.

Historically, RENNtech has been a prominent Mercedes-Benz specialist, and Feyhl himself is regarded by many automotive industry insiders as the USA’s foremost authority on Mercedes tuning.

His vast experience comes from his 12 years spent at AMG well before the tuning company became part of Mercedes-Benz in 1999, then going on to serve as that AMG’s North American technical director prior to branching out on his own to start RENNtech in 1989.

RENNtech designs, engineers and manufacturers their proprietary line of tuning products in-house at our facility, which features a full fabrication and machine shop with CNC and rapid prototype capabilities.

Our facility also features in house performance dynos, complete engine management and chip tuning capabilities; a complete service, repair and installation facility. Plus a full time design, engineering and sales staff.

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