Click here for MK3 Focus RS Rear Diffuser suitable WITHOUT Rear Lower Fog Light (USDM)
Please note this diffuser is only suitable with the MK3 Focus RS WITH the rear lower fog light (EUDM/AUDM). For the diffuser compatible without the rear lower fog light (USDM) please click here.
The 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 - No more L-brackets, no additional exposed hardware and no double-sided tape, experience the Flow-Lock difference today!
The rear valance and diffuser fins will clear the Focus RS dual exhaust and rear bumper removal is not necessary for installation of the diffuser. 10 year warranty applies for the rear valance (excludes ABS fins).
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). It is also possible to install when your car is on the ground.