Radium FPR Adaptor 8AN ORB, 11mm Bore, 39mm Spacing, M6 - Subaru WRX STI 01-07/Mitsubishi Evo X/Mazda MX-5/Toyota 2JZ

Radium FPR / FPD Adapter - 8AN ORB, 11mm Bore, 39mm Spacing, M6

Suits:

• 2001-2007 Subaru WRX / STI — OEM FPR/FPD with 11mm bore, 39mm spacing, M6 mounting
• Mitsubishi Lancer Evolution X (Evo X)
• Mazda MX-5 (NA / NB / NC)
• Toyota 2JZ applications

The Radium Engineering FPR/FPD Adapter allows an OEM fuel pressure regulator (FPR) or fuel pulse damper (FPD) to be reused in an aftermarket fuel rail application. Machined from anodised billet 6061 aluminium with an 8AN ORB port. All fittings permit the unit to be clocked into the correct position for clean installation.

Specifications

• Port: 8AN ORB
• Bore: 11mm
• Mounting Spacing: 39mm
• Mounting Hardware: M6
• Material: Billet 6061 aluminium
• Finish: Anodised
• Clocking: Adjustable — unit can be clocked into the correct position

Part Number:

• 20-0301 — Radium FPR/FPD Adapter, 8AN ORB, 11mm Bore, 39mm Spacing, M6 (Subaru WRX/STI 2001-2007 / Evo X / Mazda MX-5 / Toyota 2JZ)

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined billet aluminium components built for performance and longevity
• ✅ Trusted by high-power build tuners and race teams worldwide
• ✅ Bolt-on fitment — no cutting, drilling, or fabrication required
• ✅ Compatible with E85, pump petrol, and flex fuel sensor integration