Originally Posted by Tortfeasor 335xi
Also worth noting is what octane. Its easy to make big numbers by using race gas, it also tends to mask bad tuning by adding extra detonation protection. Looking at the PSI and Octane will give you an idea about how relevant the tune is for daily driving.
Do not expect honesty in anything as such around here.
That said, while I have run and enjoyed GIAC tunes in Audi's, I do not expect perfection right out of the box. I know there were many iterations of the B5 S4 tunes as well as the Stage 3 AWE tune. Assumptions about perfection out of the box are unfounded. But continual improvement should be expected. The delivery (of updated tunes) is the questionable part