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By Radium Engineering

20-0965 2008-2021 Subaru STI Radium Fuel Pressure Regulator Kit

$256.45
$269.95 $256.45
Save $13.50
Availability: In stock
SKU: 20-0965
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Radium Engineering fuel pressure regulator kit 20-0965 for 2008-2021 Subaru STI at Tuned By Shawn
$256.45
$269.95 $256.45

The Radium Fuel Pressure Regulator Kit fits 2008-2021 Subaru STI. Part number 20-0965.

Features

  • Replaces the OEM fuel pressure regulator and damper assembly on the USDM EJ257 STI
  • Re-routes fuel through the rails before the regulator, the preferred routing for addressing stumbling
  • RA-series regulator with tool-less knob adjustment; each detent changes pressure roughly 1 psi (+/- 0.5 psi)
  • Single stainless steel return orifice generates laminar flow for enhanced pressure stability
  • 360-degree swiveling, double O-ring sealed vacuum reference port
  • Unused 8AN ORB port accepts the optional Radium 20-0386 pressure gauge kit, sold separately

Kit Includes

  • 1x RA-series direct mount fuel pressure regulator (black)
  • Mounting and adapter hardware for the OEM regulator location
  • Vacuum hose and fittings to re-route the reference line to the intake manifold plenum

Applications

  • 2008-2021 Subaru WRX STI (USDM, EJ257 engine only)
  • Not compatible with 2015-2021 Subaru WRX (FA20DIT)