Today, RENNtech is a foremost manufacturer of performance parts for Mercedes Benz AMG, Aston Martin, Bentley, Rolls Royce, Audi, and Lamborghini, made available through our network of Mercedes-Benz Dealerships and Independent Performance Shops across the world.

Basically, a warranty claim cannot be denied on your vehicle simply because of aftermarket or performance parts. This means that when you decide to install an exhaust or lowering kit on your car and the engine fails, they cannot deny a warranty claim based solely on the fact that the vehicle was not stock.

Established in 1989 by Hartmut Feyhl, RENNtech has evolved and grown from servicing AMG's customers into the foremost authority on tuning and customizing AMGs and Mercedes-Benz.

The RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band.