yes front discs aren't cheap at all, ive vern told there identical just 50tdi was mapped with 20% power reserve at 286bhp compared too the s6 at 349bhp apparently a simple remap will bring a 50tdi engine up too the same power few videos on youtube and mappers say same power figures after remap be nice too know for sure that theres no differences is injector's,turbo,manifolds ect so anyone who can check or knows id appreciate the heads up and ive been looking for an s6 engine cover they are very nice!