This is a Trust GReddy Spec-R HG FMIC Intercooler Kit for the Subaru Impreza GDB GGA, Legacy BP5 equipped with the EJ20 Engine. This kit is part of GReddy's newest lineup of intercoolers and is the absolute top of the line!! The SPEC-R HG kit is designed to support the most power (high-boost) with the absolute best cooling efficiency and the lightest weight unit available from GReddy. It is recommended for sports turbine upgrades to full-tuned engines with large turbine kits.