Subaru Systems 2022+ WRX w/ HK Evolution+ Series $1,799.00 – $3,599.00 - 2015-2021 WRX/STI Reference Series $1,999.00 – $2,599.00 - 2017-2023 Crosstrek/Impreza System+ Series $1,599.00 – $2,299.00 - 2022+ Subaru WRX System+ Series $1,599.00 – $2,299.00 - 2015-2021 WRX/STI System 500 $1,699.00 – $2,098.00 - 86 / BRZ / FRS System+ Series $1,599.00 – $1,999.00 - 2020-2023 Outback Reference Series $1,699.00 – $1,999.00 - 2012-2018 Subaru Forester Reference Series $1,699.00 – $1,999.00 - 2015-2021 WRX/STi w/ HK Enhancement $1,199.00 – $1,799.00 - 2011-2014 STI WRX Sedan System 500 $1,299.00 – $1,599.00 - 2008-2014 WRX/ STi/ Impreza Hatchback System 500 $1,299.00 – $1,599.00 - 2022+ Subaru WRX w/ HK Enhancement+ Series $1,199.00 - 2022+ WRX w/ HK Speaker Upgrades $799.00 - 2022+ WRX Speaker Upgrade+ $700.00 - Don’t see your vehicle listed? Let us know the make/model of the vehicle