normally the software is routhly 300? for 2.slo/vr6, 500? 1.8t, 550? 2.0t, etc... (i'm approx on the prices)

but i will tell you guys get the software... NA guys will get some better response and some higher numbers(but you pay less), Turbo/Supercharger guys will get HUGE gains you will think you bought a completely different car. i know my 1.8t went from daily OK driver to OMG FEED IT FUEL!!!

if you drive VW/AUDI and you don't have software... WHY is the only question?