GIAC has produced the highest quality performance software for Audi ® and VW ® vehicles for longer than most other tuners have been in existence. In fact we have been tuning these applications for over 21 years now. We succeed with these cars year after year because we have been willing to devote the time necessary to get it right. We have a variety of programs for almost every Volkswagen made from 1991 to present and most Audi cars from 1996 and later. All software performance programs feature a full recalibration for all driving conditions, which we can replicate at our test facility in Rancho Santa Margarita, CA.