- Acoustic Correction Filters
- 8” Quad-Coil Subwoofer System (Carbon Fiber Cone Technology)
- Dedicated Subwoofer Amplifier (400 Watts RMS)
- Subwoofer Gain Control Knob
- Quick-Sync Wiring Harness
$999.00 – $1,398.00
OEM Audio Plus is proud to bring offer our signature sound reproduction and seamless integration to the Harman Kardon equipped Subaru WRX/STI 2015-Present. More than “just a sub” the HK Enhancement delivers improved dynamics and clarity and deep, non-localized bass reproduction, all the while preserving ALL your vehicle functionality.