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’15 STI WRX Upgrade | For HK Owners

7 Day Lead-time

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. After launching the O+ Sound Solution for the standard audio WRX/STi vehicles, we have received a flood requests to make an upgrade path available to the owners equipped with the HK system. Here it is!

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.

$1,199.00

(VA-HK-RSO) ($399.00)
  • 8” Quad-Coil Subwoofer System (Carbon Fiber Cone Technology)
  • Dedicated Subwoofer Amplifier (400 Watts RMS)
  • Vehicle-Specific Sub enclosure (14 Liters of Air Volume)
  • Subwoofer Gain Control Knob
  • Acoustic Correction Filters
  • Quick-Sync Wiring Harness

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