Perrin Top Mount Intercooler (TMIC) - Silver Fits 2008-2021 Subaru STI

Perrin’s Top Mount Intercooler for the 2008–2021 Subaru WRX STi is engineered to deliver massive gains in cooling efficiency, throttle response, and sustained performance. Designed as a direct-fit upgrade over the stock intercooler, this unit is built for enthusiasts running upgraded tunes, larger turbos, or simply looking to eliminate heat soak during aggressive driving or track sessions.

At the heart of the upgrade is a high-capacity bar-and-plate core that dramatically increases the intercooler's surface area and thermal mass. This means lower intake temperatures, even under extended boost, which translates to more consistent horsepower and torque. The Perrin core design features precise fin density and internal flow pathways optimized for maximum charge-air cooling with minimal pressure drop.

Its CNC-machined aluminum end tanks ensure strong, consistent airflow and integrate perfectly with OEM charge pipes and bypass valves, making installation as smooth as possible.

• Bar-and-plate core design maximizes thermal efficiency and resists heat soak under repeated hard use
• CNC-machined aluminum end tanks deliver even flow and reduce turbulence
• Direct bolt-on install with OEM-compatible layout and sensor provisions

Whether you’re chasing lap times or carving mountain roads, this intercooler is a must-have upgrade for any serious STi build. Expect cooler temps, more stable boost, and reliable power—backed by Perrin’s heritage of performance engineering.

CARB NOTE:

This product cannot ship to the state of California as it is not CARB compliant.