Home / Make/Model/Year/Engine/Fuel / Audi / A4 / B6 (2002-2004) / 1.8T / Quattro Quattro GIAC Stage 2 software upgrade0 out of 5 $631.25 GIAC Stage 3 K04 software upgrade0 out of 5 $796.63 GIAC Stage 4 GT28R software upgrade0 out of 5 $521.00 GIAC Stage 1 Plus software upgrade0 out of 5 $631.25
