2015-2021 STI Engine Tuning & Sensors

Take control of the engine tuning on your fourth generation STI with engine management software and kits from Subimods. The COBB AccessPORT is everything you need to flash your ECU and Subimods offers a wide selection of faceplates, mounts & more as well as upgraded sensors from brands like AEM, COBB, Omi Power, and more.

Engine tuning parts & accessories compatible with: 2015, 2016, 2017, 2018, 2019, 2020 & 2021 Subaru STI.