Cart Continue shopping “Porsche 958 Cayenne 3.6L ECU Software Upgrade (SHIP IN ECU)” has been added to your cart.Remove itemThumbnail imageProductPriceQuantitySubtotal × Porsche 958 Cayenne 3.6L ECU Software Upgrade (SHIP IN ECU) $1,499.99 Porsche 958 Cayenne 3.6L ECU Software Upgrade (SHIP IN ECU) quantity $1,499.99 Coupon: Apply coupon Update cart Cart totalsSubtotal$1,499.99Service / Financing / Processing$64.20Total$1,564.19 (includes $4.20 Tax)- Proceed to checkout