Cart “PORSCHE CAYENNE 958 S / GTS 4.8L ECU Software Upgrade (SHIP IN ECU)” has been added to your cart. Continue shoppingRemove itemThumbnail imageProductPriceQuantitySubtotal × PORSCHE CAYENNE 958.2 S / GTS 3.6L TT ECU Software Upgrade (SHIP IN ECU) $2,139.99 PORSCHE CAYENNE 958.2 S / GTS 3.6L TT ECU Software Upgrade (SHIP IN ECU) quantity $4,279.98 (incl. tax) × PORSCHE CAYENNE 958 S / GTS 4.8L ECU Software Upgrade (SHIP IN ECU) $1,799.99 PORSCHE CAYENNE 958 S / GTS 4.8L ECU Software Upgrade (SHIP IN ECU) quantity $1,799.99 Coupon: Apply coupon Update cart Cart totalsSubtotal$6,079.97 (incl. tax)Service / Financing / Processing$325.28Total$6,405.25 (includes $301.28 Tax)- Proceed to checkout