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Fuel Pressure Regulator kit for 2008-2020 Subaru STI to eliminate the 2800rpm stumble and also give you future upgradability to parallel fuel rails.
Includes all high quality Made in the USA Phenix Fittings and parts.
1 Adjustable Fuel Pressure Regulator
4 Quick Connect AN Adapters
5 6AN Straight Hose Ends
1 6AN 150deg Hose End
1 6AN O-Ring Plus
2 6AN O-Ring to Flare adapters
2ft 6AN Nylon Braided Hose (Stainless layer inside)
Optional: 1 Phenix Fuel Pressure Gauge