Cart “Porsche Boxster 3.4L ECU Software Upgrade” has been added to your cart. Continue shoppingRemove itemThumbnail imageProductPriceQuantitySubtotal × BENTLEY CONTINENTAL GT Speed Custom In-House Dyno Tuning $4,279.99 BENTLEY CONTINENTAL GT Speed Custom In-House Dyno Tuning quantity $4,279.99 (incl. tax) × Porsche Boxster 3.4L ECU Software Upgrade $1,069.99 Porsche Boxster 3.4L ECU Software Upgrade quantity $1,069.99 (incl. tax) Coupon: Apply coupon Update cart Cart totalsSubtotal$5,349.98 (incl. tax)Service / Financing / Processing$286.23Total$5,636.21 (includes $368.73 Tax)- Proceed to checkout