Super Sale COBB Fuel Pressure Regulator Manifold Relocation Kit 2008-2021 STI

Description

Optimize your 2008-2021 Subaru WRX STI’s fuel system with the COBB Fuel Pressure Regulator Manifold Relocation Kit. Designed to improve fuel pressure stability, this kit relocates the fuel pressure regulator’s manifold reference line from the #4 cylinder runner to a plenum-based source. This adjustment reduces unwanted manifold pulsations, ensuring more consistent fuel pressure and better engine performance under boost or vacuum conditions.

The kit includes all necessary components to move the FPR reference line to a more stable pressure source, mimicking the proven design used on earlier 2004-2007 STI models. By referencing the plenum, which averages vacuum and boost across all cylinders, the fuel pressure regulator operates more reliably without interference from cylinder-specific pressure fluctuations.

Ideal for Subaru WRX STI enthusiasts seeking enhanced fuel management and smoother engine response, this COBB relocation kit is a practical upgrade for forced induction setups. Upgrade your fuel system with confidence and shop quality Subaru performance parts at Subimods today.