Process West Intake Manifold Track Version Black (Reverse Cable Throttle Position) Subaru WRX 2002-2005 | PWIM003B

Product Fitment:

2002-2005 Subaru WRX

The Process West Billet Intake Manifold for the 2002–2005 Subaru WRX and STI represents a no-compromise approach to high-performance induction design. Developed through extensive engineering, prototyping, and real-world validation, it is built for serious performance applications where airflow, strength, and consistency are critical.

This Track version features a reverse throttle body orientation, making it ideal for engine bay configurations where the standard layout is not suitable.

Built Without Compromise

Each manifold is CNC machined from solid billet aluminium, delivering exceptional structural integrity and precision.

Key construction features include:

• Full billet aluminium CNC-machined construction
• Generous bell-mouth runner entries for optimized airflow
• Thick-wall polished CNC mandrel-bent tube sections
• High-end TIG welded assembly throughout
• Rated to 100psi boost pressure capability

This level of construction exceeds the limitations of cast or fabricated intake manifolds in both strength and consistency.

Track-Focused Performance Design

The Track configuration is engineered for maximum performance output:

• Plenum volume and runner length optimized for aggressive airflow characteristics
• Strong low and mid-range torque delivery
• Enhanced top-end power potential
• Designed for high-output performance applications

Testing has demonstrated:

• 10%+ gains on stock engine configurations
• Consistent gains maintained on heavily modified builds

For applications requiring additional top-end power, shorter billet TGV options are available.

Reverse Throttle Body Orientation

This version is designed with a reverse throttle body layout, offering improved compatibility for:

• Custom intake routing
• Modified engine bay configurations
• Performance builds with space constraints or alternative turbo setups

Designed for Serious Applications

The Track Billet Intake Manifold is intended for builds where performance is the priority:

• Dedicated track cars
• Drag racing applications
• High-output street builds
• Engines not requiring air conditioning compatibility

Key Features:

• CNC billet aluminium construction
• Reverse throttle body orientation
• Rated to 100psi boost capability
• Optimized runner and plenum design for performance
• High-flow bell-mouth intake runners
• TIG welded high-strength assembly
• Supports aggressive tuning and high boost levels
  

Performance Benefits:

• Significant airflow improvement
• Increased horsepower and torque potential
• Enhanced high-RPM power delivery
• Improved engine breathing under boost
• Strong structural reliability for high-pressure applications