ProSport EVO series Oil / Fuel Pressure Harness Subaru-STI-2004 Enlarged bore size to accommodate

Enlarged bore size to accommodate ported exhaust systems/heads

The Cobb SF Intake System for the 2008-2021 Subaru WRX STI is the intake that every Cobb Stage 2 OTS map is calibrated for

Red Center positioning stripe

Your factory post-MAF hose is a wrinkled rubber accordion that disrupts airflow right where it matters most

Our intake systems are designed with precision in mind

ProSport EVO series Oil / Fuel Pressure Harness Subaru-STI-2004 Enlarged bore size to accommodateThis can be used on Red Blue and Green White EVO series Oil pressure and Fuel pressure gauges. Keep in mind that this harness will only work with gauges with a white pin connection on the gauge.