Flow Designs Flow-Lock Rear Diffuser Subaru WRX / STI 2015-2021

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Availability: Out Of Stock
Type: Exterior Diffusers
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Subtotal: $350.00
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The most innovative rear diffuser on the market, get the Flow-Lock rear diffuser for your VA WRX or VA WRX STI. The rear valance and diffuser fins will clear the WRX & WRX STI dual exhaust exit points on the rear bumper. Chassis mounts are included with the rear diffuser kit to guarantee secure fitment!

The unique Flow-Lock interlocking system allows for the final assembly of the diffuser fins without tools or fasteners. A simple push and click and the kit is assembled and ready for installation - this means zero exposed hardware giving you the cleanest look for your WRX/STI rear.

No more L-brackets, no additional exposed hardware and no double-sided tape, experience the Flow-Lock difference today!

Valance is installed to the car through bolts and nuts while the Flow-Lock diffuser fins simply click into the valance (once locked into the valance it is secure).

Subaru VA WRX/STI Rear Diffuser Kit Includes:

  • Subaru VA WRX/STI rear diffuser (rear valance and x4 Flow-Lock diffuser fins)
  • Subaru VA WRX/STI rear valance chassis mounts
  • x2 Flow Designs stickers
  • Fitting kit

Subaru VA WRX/STI Rear Diffuser Material & Finish:

  • Valance: 10mm thick polyethylene composite, bevelled edges
  • Flow-Lock diffuser fins: 4.5mm thick textured ABS
  • Valance: Hand polished satin black
  • Flow-Lock diffuser fins: scratch resistant textured ABS plastic
  • CNC engraved logo and features


WARNING: Cancer and Reproductive Harm. (http://www.p65warnings.ca.gov)

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