... Sets: for Audi engines. AUDI: 100, 200, Quatro, 80, 90, A3, A4, A5, A6, A7, A8, TT, S4, S5, R8 ... , Q5, Q7, etc United Material Piston Rings: for Audi Engines Compression Ring | Intermediate ... for this purpose. Application:Piston rings set for Audi automobiles engine.Car Models: 100, 100 Quatro, ... Quatro, A7, A8, A8 Quatro, TT, TT Quatro, S4, S5, S6, R8, RS4, RS6, Q5, Q7, Cabriolet ...