Description
Radium Engineering developed the Fuel Pressure Regulator & Fuel Filter Kit for BMW E46 M3 around the needs of modified street and competition cars, where component compatibility and clean system layout matter as much as outright capacity.
Why This Upgrade Matters
High-flow injectors and pumps still depend on clean fuel. A performance filter must balance contaminant capture with sufficient flow area and serviceability so the upgraded fuel system is protected without creating an unnecessary restriction.
Product-Specific Details
Replaces the fuel filter/regualtor on the bottom of the E46 BMW. Uses Radium' high-flow fuel filter and adjustable fuel pressure regulator. All fittings and hardware included. E85 compatible.
Fitment & Application
Application: BMW E46 M3
Fitment style: Application-Specific
Choose Your Configuration
-
Filter Media: 6 Micron Microglass —
RAD20-0932-05: Fine disposable filtration for strong downstream injector protection. -
Filter Media: 10 Micron Stainless Steel —
RAD20-0932-03: Reusable stainless media for a service-and-inspect maintenance strategy.
Technical Notes
Radium commonly offers fine microglass and reusable stainless-element options. Microglass prioritizes fine filtration and is replaced at service intervals; stainless media is serviceable and well suited to builds where regular inspection is part of the maintenance routine.
Radium Part Numbers
RAD20-0932-05RAD20-0932-03
Enthusiast Notes
On ethanol-fueled and track-driven cars, make filter inspection part of the maintenance schedule. A serviceable filter also gives you an early look at contamination before it reaches expensive injectors.
Before Ordering
Confirm the selected filter media/micron rating, fuel type, line size and whether the filter will be used pre-pump or post-pump as intended for the system.