ETS 15+ WRX MAF Extension Harness

This plug-in harness extends the WRX's MAF wiring to the sensor position used by the ETS 2015–2021 intake. I'd use it when the factory lead will not reach properly, keeping the original wiring intact instead of cutting and splicing. It changes the reach of the electrical connection; it does not change MAF scaling or replace the intake's calibration requirements.