'11-14 STI/WRX Sedan | System 450Q
Click To Enlarge

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.  


  • 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 


  • Multi-Channel 32-Bit DSP Amplifier (360 Watts RMS @ 2-ohms)

wrx, sti, sedan, subaru wrx, subwoofer, sub, amp, dsp, oemaudioplus, stereo, audio, upgrade, music

  • Advanced Cirrus-Logic 32-bit Digital Signal Processing 
  • Vehicle and Head Unit specific Signature Tuning
  • Low Voltage/Short Circuit Protection (Meeting all OEM standards)
  • Mounts using exiting hardware location under passengers seat 


  • NEW 8'' Quad Voice-Coil Carbon Fiber Cone Subwoofer System
  • Vehicle-Specific Sub enclosure (14 Liters of Air Volume)

wrx, sti, 2011 wrx, 2012 wrx, 2013 wrx, 2014 wrx, subwoofer, dsp amp, amplifier, plug and play, carbon fiber, sub, bass

  • Mounts using existing vehicle mounting locations (no modification to vehicle needed)

subaru wrx / sti sound system, custom subwoofer, carbon fiber cone woofer


  • Quick-Sync "Plug & Play" Wiring Harness
  • Harness runs utilizing existing factory channels (no running under the carpet..)

We invite you to be apart of the audio revolution, experiencing your music as intended - OEM Audio Plus

If you have any questions regarding the System 450Q Sound Solution don't hesitate to contact us directly at 855-636-6346 x4

 Full Product Showcase on iWSTI.com 

Subaru STI WRX Sedan Audio Financing

  • Item #: SUB-GRS-SYS45Q-1114

'11-14 STI/WRX Sedan | System 450Q

Price: $1,099.00
* Marked fields are required.
Qty: *
Reviews (2) Write a Review
No Reviews. Write a Review