Audi S6 Big Turbo UpgradeAudi S6 Big Turbo Upgrade Services: Big Turbo Upgrade IMG_0516IMG_0515IMG_0517IMG_0518IMG_0519IMG_0520IMG_0521IMG_0522IMG_0523IMG_0525 Objective: This Audi S6 was “pretty” fast as is, we upgraded turbochargers with ball bearing cartridges and billet impellers which made it WAY faster and more reliable as the turbos will not fail like original journal bearing … Related posts:Audi S5 stage 2 upgradeLotus Esprit A/C System Retrofit