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 VAG ® applications for over 23 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.