This fuel pressure regulator (FPR) and fuel filter is a bolt-in kit designed specifically for the 2001-2006 BMW (E46) M3.
The OEM fuel filter is replaced with a high-flow Radium Engineering fuel filter. Depending on the element chosen, the filter can be compatible with all fuel types and/or can be cleaned and reused.
The OEM FPR is replaced with an adjustable high-flow Radium Engineering FPR.
The complete 20-0430-0X kit is shown above. All necessary hardware and adapter fittings are included. Nothing else is required.