Unitronic 60mm Adapter Ring Set For Turbo Inlets - Audi RS6 / RS7 (C8) 4.0TT 2021+For use with the Unitronic Carbon Fiber Intake System and Turbo Inlets on the C8 RS 6 and RS 7 equipped with the 4. 0TFSI engine and TTE1020 hybrid turbochargers. Hardware Included 2x 60mm Inlet Adapter Rings 4x O rings Related Hardware 54mm Adapter Ring Set for C8 4. 0TFSI Turbo Inlets Carbon Fiber Intake & Turbo Inlets for C8 RS 6 RS 7 Blue Carbon Kevlar Carbon Fiber Intake & Turbo Inlets for C8 RS 6 RS 7 Forged Carbon Carbon Fiber Intake & Turbo