Process West Top Mount Intercooler – Subaru GRB/VA STI (08+) – Black

The Process West Top Mount Intercooler for Subaru 2015+ WRX/STI models features a massive 530 x 193 x 90mm bar & plate core — the largest top mount intercooler Process West has produced, and the biggest available for this generation of vehicles.

This upgrade delivers exceptional cooling efficiency and airflow capacity, making it ideal for high-performance applications where under-bonnet space is at a premium.

Silicone Y-Pipe Included
A key part of this kit is the Process West Silicone Y-Pipe, which connects the turbocharger compressor outlet to the intercooler. Designed to correct airflow imbalances common in traditional Y-pipe designs, this component ensures equal charge air distribution across the full surface of the intercooler core.

Where many aftermarket Y-pipes feature one smooth-flowing path and a secondary “spout,” the Process West version delivers symmetrical flow for improved throttle response, consistency, and performance.

With all hardware included for installation, this is the ultimate top mount intercooler solution for your 2015+ Subaru WRX or STI.

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