After a lengthy R&D process USP Motorsports is pleased to announce our Intake System with heat shields for the Audi S8 4.0T. The factory system runs (2) 2.25" plastic pipes with baffling. Our upgraded USP Motorsports system features (2) 2.5" aluminum pipes which transition to a 4" pipe and cone style filters. The system also includes aluminum heat shields to protect intake air from engine bay heat. As a result you yield lower intake air temperatures.