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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.
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:
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:
Finished in a durable black powdercoat, the charge pipe blends seamlessly into the engine bay while offering long-term corrosion resistance.
Everything required for installation is included for a direct bolt-on upgrade:
No additional fabrication required.
The factory WRX charge pipe is known for:
The Process West Charge Pipe Kit improves both reliability and performance, making it an essential supporting modification for tuned or upgraded WRX builds.
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