Cart Continue shopping “Audi S8 4.0TFSI ECU Software Upgrade” has been added to your cart.Remove itemThumbnail imageProductPriceQuantitySubtotal × Audi S8 4.0TFSI ECU Software Upgrade $2,139.99 Audi S8 4.0TFSI ECU Software Upgrade quantity $2,139.99 (incl. tax) Coupon: Apply coupon Update cart Cart totalsSubtotal$2,139.99 (incl. tax)Service / Financing / Processing$91.59Total$2,231.58 (includes $145.99 Tax)- Proceed to checkout