- 2008-2014 STi
- 2015-2018 STi
- Brand: COBB Tuning
- Manufacturer's Part Number: 315150
- UPC: 700424673643
- Manufacturer's Warranty: 12-month Limited Warranty. Please see COBB's website for full details
- We ship internationally! Please email us for international shipping quotes.
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.
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.
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
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