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SKU: B315200 | UPC: 700424673650
The COBB 315200 replaces the factory regulator with a billet aluminum Aeromotive unit on 2008-2021 Subaru STI (EJ257) and 2008-2014 WRX (EJ255) for precise fuel delivery. Adjust base pressure from 30-70 psi with true 1:1 manifold reference to eliminate droop under boost, supporting E85, flex fuel, large injectors, and upgraded pumps. Kit includes firewall bracket, braided stainless line, and all fittings for direct bolt-on installation.
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2021 | Subaru | WRX STI | Base |
| 2008-2021 | Subaru | WRX STI | Limited |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2008-2014 | Subaru | Impreza WRX STI | Base |
| 2011-2014 | Subaru | Impreza WRX STI | Limited |
| 2010 | Subaru | Impreza WRX STI | Special Edition |
| 2008-2014 | Subaru | Impreza WRX | Base |
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