Cobb Fuel Pressure Regulator Manifold Reference Relocation Kit 2008-2021 Subaru STI | 315150

Cobb Fuel Pressure Regulator Manifold Reference Relocation Kit 2008-2021 Subaru STI | 315150

Cobb Tuning
SKU: cobb315150
Availability: 6 In Stock Learn more
Type: Fuel Miscellaneous
$17.92
$20.00
$17.92
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Regular Price: $20.00 - Instant discount: $2.08 = $17.92


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Overview  

Fitment Information:

2008-2021 Subaru STI

The COBB Tuning Fuel Pressure Regulator Manifold Reference Relocation Kit includes everything you need to relocate the FPR reference line to a more stable pressure source.

Features:

  • Improved Vacuum Reference for the FPR - Plenum Based (COBB) vs. Individual Cylinder Runner (OEM)
  • Reducing "T" Fitting
  • 4mm and 6mm Silicone Vacuum Line
  • Black Zip Ties
  • Easy Installation
  • Installation Instructions
This allows for moving the fuel pressure regulator's manifold pressure reference away from the #4 cylinder runner and into a plenum-based source, similar to the method used on the previous generation 2004-2007 STI. This helps prevent unwanted manifold pulsations from affecting the FPR as the plenum is a common area of the manifold that represents the average vacuum/boost of all cylinders rather than a singular cylinder.