Cart “Porsche 911 CARRERA / CARRERA 4 / TARGA 4 (991.2) ECU Software Upgrade” has been added to your cart. Continue shoppingRemove 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 × Porsche 911 CARRERA / CARRERA 4 / TARGA 4 (991.2) ECU Software Upgrade $1,999.99 Porsche 911 CARRERA / CARRERA 4 / TARGA 4 (991.2) ECU Software Upgrade quantity $1,999.99 Coupon: Apply coupon Update cart Cart totalsSubtotal$3,499.98Service / Financing / Processing$187.25Total$3,687.23 (includes $12.25 Tax)- Proceed to checkout