RENN HAUS is among the top car tuners in America for European cars. Our expert tuning team has a combined 70+ years of tuning experience and the cars to prove it.  

The RENN HAUS certified technicians can recommend an engine tune specifically for your vehicle to increase your horsepower, improve your low-end torque, throttle response, and increase highway gas mileage.  Many modern turbocharged and supercharged vehicles have been de-tuned from the factory to as much as 100 horsepower for driving economy.  A hand-selected tune can increase the power on some cars by as much as 100 horsepower and 150+ foot-pounds of torque with no other modifications!