This fuel pressure regulator (FPR) and fuel filter is a bolt-in kit designed specifically for the 2001-2006 BMW (E46) M3 using factory fuel lines. 

The OEM fuel filter is replaced with a high-flow Radium Engineering fuel filter. The filter is compatible with all fuel types. For information on Radium Engineering fuel filters, go .

The OEM FPR is replaced with an adjustable high-flow Radium Engineering FPR.

The complete 20-0430-0X kit is shown below. All necessary hardware and adapter fittings are included. Nothing else is required.