This is an OEM Hitachi Speed Density TMAP sensor, imported from Japan.
TMAP = Temperature + Manifold Abolute Pressure
This sensor measures Intake Air Temp + Boost Pressure.
Uses Factory GTR Pressure & IAT Scaling with no ECU changes required.
Compatible with all of SBD GTR SD kits and most other brand’s SD kits.
A common replacement for Failed Omni SD Sensors, which have a notoriously high failure rate.
You will need a complete Speed Density kit, with wiring harness, if you car doesn’t have one yet. You can find those here: https://spdbydesign.com/product/sbd-speed-density-conversion-kit/