Process West Billet Intake Manifold – Subaru WRX/STI/FXT/LGT (EJ20/EJ25)
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The Process West Billet Intake Manifold is the ultimate combination of performance, precision, and aesthetics for Subaru EJ-powered vehicles. Crafted from CNC-machined billet aluminium, this intake manifold delivers unmatched strength and airflow efficiency for both street and competition applications. Engineered from years of development, the design optimises plenum volume and runner geometry to maximise low and mid-range torque while aggressively improving top-end power. Capable of handling boost pressures up to 100psi, the Process West Billet Intake Manifold is the definitive upgrade for serious performance builds.
Key Features
- Full billet aluminium plenum with precision-machined bellmouth runners
- Thick-wall CNC mandrel-bent tubing for superior flow and strength
- Hand TIG-welded construction rated for high-boost applications
- Optimised runner length for increased torque and top-end power
- Designed for front-mount intercooler setups
- Available in raw billet or black coated finishes
- Configurable for front or reverse orientation throttle setup
Technical Specifications
- For front-mount intercooler setups only
- Custom intercooler piping required (not included)
- Reverse orientation requires relocation or removal of A/C and alternator
- Custom throttle flanges available upon request
Contents
- Process West Billet Intake Manifold Assembly
- Mounting Hardware
- Throttle Flange (as per configuration)
Vehicle Fitment
- 2001–2007 Subaru WRX (confirm OEM throttle body first)
- 2008–2014 Subaru WRX
- 2001–2007 Subaru STI (confirm OEM throttle body first)
- 2008–2014 Subaru STI
- 2015–2021 Subaru STI
- 2003–2008 Subaru Forester XT (confirm OEM throttle body first)
- 2008–2013 Subaru Forester XT
- 2004–2009 Subaru Liberty GT
No instructions available for this product.
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