Radium Engineering Fuel Pressure Regulator Kit Mazda MX-5 Miata 1999-2005 - 20-1022

Radium Engineering 20-1022 adjustable fuel pressure regulator kit for the 1999-2005 Mazda MX-5 Miata.

• Adjustable regulator that works with all fuel pump hangers, including the factory returnless system in the NB chassis
• Mounts near the EVAP charcoal canister on OEM threaded studs
• The OEM feed line from the pump to the filter stays in place unaltered; two new 6AN lines run to and from the regulator
• Pressure gauge mounts beside the regulator on the feed line for adjustment
• Stainless quick-connect plug blocks the tee in the OEM feed line
• Vacuum reference port swivels 360 degrees with four interchangeable fittings; a vacuum plug option keeps pressure constant like the OEM system
• No permanent modifications required
• Works with the Radium 20-1020 MX-5 fuel hanger, or with the OEM hanger by bypassing the OEM regulator
• Compatible with unleaded, leaded, oxygenated and premix gasoline, methanol, ethanol and E85 blends
• Some pressure drop after shutoff is normal for aftermarket regulators

Included

• Adjustable fuel pressure regulator (MPR-RA)
• 0-100 psi fuel pressure gauge
• Stainless steel mounting bracket
• Anodized aluminum fittings
• SAE quick-connect fittings
• Hose clamps and hardware
• 6AN (3/8 in) fuel hose

Fitment

• Mazda MX-5 Miata 1999-2005. (Source: Radium Engineering)

Resources

• Radium Engineering product page

Contact us if you are unsure of fitment or Size HERE