According to Bosch's Online catalog, the FR7MPP10 Plug fits an S60 with the B5254T4 engine and the FR7DPP+ fits tthe B5254T2 engine. The T4 is in the R, the T2 is in the 2.5t. The MPP10 is a 26mm reach and th DPP+ is a 19mm reach. As far as I can tell this is ... Login to read more.