Radium V2 FPD-XR Extended Range Fuel Pulse Damper, 8AN ORB 2000 20-0539 — Radium Baffled Oil

20-0539 — Radium Baffled Oil Cap (Holden Commodore / HSV LSX V8)

All Radium FSTs are CNC-machined from aluminium

allowing you to step down between ORB port sizes in a fuel

✅ CNC-machined billet aluminium components for precision fitment

✅ Trusted by tuners and race teams running high-power Lotus 2ZZ-GE builds worldwide

Radium V2 FPD-XR Extended Range Fuel Pulse Damper, 8AN ORB 2000 20-0539 — Radium Baffled OilThe Radium Engineering 20 0777 V2 FPD XR is an extended range fuel pulse damper for high performance and boosted fuel systems. Designed to absorb oscillating pressure pulses created by fuel injector opening and closing, the FPD XR stabilises fuel rail pressure across the entire RPM range correcting idle surge, erratic lean AFR spikes, and "stumbling" that are difficult to tune out, especially with high flow injectors. V2 Update: Even after tightening,