Process West Charge Pipe Kit Subaru WRX 2015-2021

Product Fitment:

2015-2021 Subaru WRX

The Process West Charge Pipe Kit is engineered as a high-flow replacement for the factory charge pipe system on the 2015-2021 Subaru WRX (VA chassis). Designed to reduce restriction between the turbocharger and intercooler, this upgrade improves airflow efficiency, throttle response, and overall boost stability-especially on tuned vehicles.

High-Efficiency Flow Design

The factory charge pipe features restrictive bends and plastic construction that can flex under boost. The Process West upgrade replaces this with a smoother, high-flow design, reducing turbulence and helping maintain consistent boost delivery.

Key improvements include:

• Larger, smoother internal bore
• Reduced airflow turbulence
• Improved boost consistency under load

Two-Piece Design for Easier Installation

Unlike many one-piece aftermarket alternatives, this kit features a two-piece construction, making installation significantly easier in the tight VA WRX engine bay.

Benefits include:

• Simplified fitmentt in confined spaces
• Reduced installation frustration
• Cleaner alignment during assembly

OEM+ Aesthetic & Durability

Finished in a durable black powdercoat, the charge pipe blends seamlessly into the engine bay while offering long-term corrosion resistantce.

• Factory-style appearance (OEM+)
• Durable protective coating
• Built for long-term reliability under boost

Complete Bolt-On Kit

Everything required for installation is included for a direct bolt-on upgrade:

• High-quality silicone couplers
• Heavy-duty hose clamps
• Precision-fit charge piping components

No additional fabrication required.

Why Upgrade?

The factory WRX charge pipe is known for:

• Restrictive internal design
• Plastic construction that can expand under boost
• Reduced efficiency under higher boost levels

The Process West Charge Pipe Kit improves both reliability and performance, making it an essential supporting modification for tuned or upgraded WRX builds.

Key Features:

• Fits 2015-2021 Subaru WRX (VA chassis)
• High-flow replacement charge pipe system
• Two-piece design for easier installation
• Smooth internal bore reduces restriction
• Black powdercoated finish
• Includes silicone couplers and clamps
• OEM+ engine bay appearance
• Designed for tuned and stock applications

Performance Benefits:

• Improved throttle response
• More consistent boost delivery
• Reduced airflow restriction
• Increased system durability under boost