VA WRX & STI Flow-Lock Rear Diffuser

Sale price$350.00


Suits 2014-2021 VA WRX & STI models


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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 - sharing the same durability and technology as our renowned Silvia S15, Golf GTI and Focus RS line up, trusted by car enthusiasts worldwide. 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).

Kit Includes:

  • VA WRX/STI rear valance
  • VA WRX/STI 4x Flow-Lock diffuser fins
  • VA WRX/STI rear valance chassis mounts
  • x2 Flow Designs stickers
  • Fitting kit black stainless hardware

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

Install Instructions Page 1 (PDF)

Install Instructions Page 2 (PDF)

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