Radium Engineering FPD's use a vacuum/boost reference port which allows for proper fuel pulse damper performance even at elevated fuel pressures

improves ring seal stability

5150 stroker kit offers varying displacements

Shot peening to increase resistance to fatigue

-Laser cut anodized E46 specific mounting bracket

B58 MOTIV ReFlex+ Package:ReFlex+ & Harness Radium Engineering FPD's use aMOTIV ReFlex+ Advanced I O Integration, BMW Toyota B58 The MOTIV ReFlex+ is the ultimate controller designed for BMW and Toyota B58 engines, offering unparalleled versatility in controlling aftermarket performance parts. With the ReFlex+, you can seamlessly integrate advanced features for enhanced performance tuning. Key Features: Sequential Port Injector Controller: Supports up to eight cylinders, enabling precise control over fuel injection.