Radium Engineering FPR and Fuel Filter Kit – BMW E46 (With Filter)

This bolt-in Radium Engineering fuel pressure regulator (FPR) and fuel filter kit is designed specifically for the 2001–2006 BMW E46 M3. It replaces the OEM fuel filter and FPR using the factory fuel lines for a clean, seamless install. Compatible with all fuel types including gasoline, ethanol blends, and methanol.

The Radium high-flow fuel filter replaces the restrictive OEM unit and offers superior filtration. Choose between a cleanable stainless element or a serviceable microglass element.

The included RA-Series regulator features tool-less pressure adjustment and a 360° swiveling vacuum reference port. Haptic detents provide tactile feedback in 1psi increments, making pressure tuning quick and precise. Four interchangeable vacuum fittings are included to suit various setups.

Vehicle Compatibility:

• 2001–2006 BMW E46 M3
  Uses factory fuel lines – no modifications required

Key Features:

• Direct bolt-in upgrade for factory fuel filter and regulator

• High-flow Radium Engineering fuel filter (Microglass or Stainless)

• RA-Series FPR with tool-free pressure adjustment and detent clicks

• 360° swiveling vacuum reference port with 4 interchangeable fittings

• Compatible with all fuel types: pump gas, race fuel, E85, methanol

• Clean, OEM-style installation with all required fittings and hardware

Note: Nothing else is required for installation. Simply choose your preferred filter element.