Range Rover Sport II / L494
i want to upgrade sdv6 306 hp to 400 or 420hp and over 800+ torque. Transmission will be in danger at that torque, what's the limit? That means ecu stage 2 intercooler exhaust and turbo,also i wanna buy the brembo gt big brake kit, what's your opinion? 405mm on front and 380 rear. Thanks to all