OEM Audio Plus

’11-14 STI WRX Sedan | System 500

Made-to-Order 7 Day Lead-time

Our Guarantee: Unmatched clarity, deep bass reproduction and a complete transformation of your listening experience in a minimalist package fashioned specifically for your STI / WRX both in design and acoustics.


SKU: SUB-GRS-SYS504-1114 Category:

Kit Includes

  • Multi-Channel 32-Bit DSP Power Amplifier
  • O+ Signature Sound Reproductions
  • NEW Vehicle-Specific 8″ Quad-Coil Subwoofer System
  • Quick-Sync Wiring Harness
  • Full Product Showcase on iWSTI.com