We're excited to announce our ECU Upgrade for the 718 Boxster/Cayman GTS 2.5T is now available with APR Plus. APR Plus includes our factory term limit matching limited powertrain warranty and produces the same output as our Stage 1 91 AKI ECU Upgrade. Expect up to 420 HP with 393 FT-LBS of torque along with all of our added features. Visit our product page to learn more.