Cart “TUNER CREDITS” has been added to your cart. Continue shoppingRemove itemThumbnail imageProductPriceQuantitySubtotal × Porsche Boxster 3.4L ECU Software Upgrade $1,069.99 Porsche Boxster 3.4L ECU Software Upgrade quantity $1,069.99 (incl. tax) × TUNER CREDITS $107.00 TUNER CREDITS quantity $107.00 (incl. tax) Coupon: Apply coupon Update cart Cart totalsSubtotal$1,176.99 (incl. tax)Service / Financing / Processing$62.97Total$1,239.96 (includes $81.12 Tax)- Proceed to checkout