in my opinnion, neuspeed has a much better product. i,m running it in my 2006 a4 avant and my gti, and it runs fantastic!!! its more reliable and less programs to fool with plus it will read your fuel upgrades without having to touch or adjust anything.and the numbers are very good, all for 400$ @ supremepowerparts.com, And neuspeeds software downloads your stock settings completely, and uploads all new performance codes. no other company does that!!!!!!!!!!!!!