ETS 15-21 Subaru STI Front Mount Intercooler

This front mount puts the STI's intercooler in the bumper and provides a 26-by-11½-inch core with more room for charge-air cooling. I'd choose it for a larger turbo, higher boost or repeated heat that the top mount cannot handle consistently.

The longer pipe route adds volume and can soften response compared with a compact top mount. Choose thickness around the build's airflow and cooling needs. This is the core only; the STI-specific piping kit is separate.