The 2021 Subaru STI marks the final year of the EJ-powered generation—legendary for its raw turbocharged power, rally-bred handling, and endless mod potential. Featuring the iconic EJ257 engine and Subaru’s aggressive AWD system, the 2021 STI is built to be driven hard and upgraded even harder. IAG Performance offers proven parts for serious enthusiasts, including short blocks, fuel systems, bolt-on turbo upgrades, drivetrain reinforcements, and suspension kits. Whether you’re chasing lap times or building a street beast, we’ve got what your STI needs. IAG Performance has parts to fit your performance needs for all models of Subaru STI, including the 2015 Subaru STI, 2016 Subaru STI, 2017 Subaru STI, 2018 Subaru STI, 2019 Subaru STI, 2020 Subaru STI, and 2021 Subaru STI.
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