GIAC is a computer engineering firm, with expertise in assembly code, high level programming and circuit design, optimal performance is achieved using  a careful combination of speed, strength, and agility that varies as driver tastes vary and that’s why GIAC exists to tune cars for the way people like to drive Autodynamica in The Woodlands TX is one of the largest dealers in the world, we offer in house computer calibration, we have access to the very extensive GIAC’s dealer library to select the best option for your Audi, BMW, Bentley, Porsche or VW.

Who we are

GIAC is a software engineering company with over 20 years of experience tuning cars. We are known for creating “factory smooth”  performance software with exceptional power and reliability. Our software replaces the standard software in your car’s engine control unit. It is programmed to adjust ignition timing, fuel delivery, fuel metering, boost settings, rev limiters and/or speed limiters to optimize performance and in some applications, fuel economy. Performance tuned programs are designed to dramatically increase torque and horsepower without sacrificing smooth drivability. Many programs are also created to accommodate numerous aftermarket performance modifications.

Our Focus

GIAC is focus on designing after market software for Porsche , Audi, BMW, Bentley & VW but also have a long history of tuning many other European makes in a case by case basis. accessory products includes the flash loader software and handheld which enable remote control switching device for easy switching between multiple GIAC programs and the stock program.

The Autodynamica team is happy to help you with any and every GIAC  application available.

To check the entire line of GIAC software available for your car, please visit