2008-2014 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...

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...

AEM's X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge (PN 30-0334) provides tuners who are using piggyback tuning modules or open source s...

AEM’s 30-0307 X-Series 150 PSI/10 BAR Digital Oil Pressure gauge combines incredible looks, increased readability and a multitude of new, easy-to-u...

AEM’s 30-0301 X-Series 100 PSI/7 BAR Digital Oil/Fuel Pressure gauge combines incredible looks, increased readability and a multitude of new, easy-...

AEM Digital Oil Pressure Gauges combine unsurpassed accuracy, speed and control with an easy-to-read digital LED interface that displays oil pressu...

AEM's Digital Boost Display Gauges combine unsurpassed accuracy, speed and control with an easy-to-read digital LED interface that displays boost i...

AEM’s legendary Digital Wideband O2 AFR UEGO Gauge is a wideband UEGO air/fuel ratio controller (AFR) and gauge in one. It unites accuracy, speed a...