2015-2021 Subaru WRX / STI

Turn your single OBD2 port into Two Can allow multiple devices to access ECU at the same time* Thin, flat harness allows for easy routing and flex...

P3 V3 Gauge Features Plug and Play Install - plugs directly into your OBD2 port (want to keep your OBD2 port open? hard-wire harness kit also ava...

Looking for a simple way to read ethanol content DIRECTLY from your ethanol sensor? Your search stops HERE! Introducing the P3 ESVA P3 Gauges has...

60" of 5/32" O.D. plastic tubing, "T" fitting, connector hoses (5/32" I.D.) and zip ties. Does NOT include boost tap.Can be used as a Plug and play...

*Does not include tubing or boost tap - Analog, V2, and V3 gauges only - Design may vary but function/application is the same Optional external 8...

*ONLY COMPATIBLE WITH V3 OBD2 GAUGEThe P3 V3 Hardwire Harness will allow you to connect your V3 gauge to your car without blocking access to your O...