GT Mustang S550 FN Flow-Lock Rear Diffuser

Suits 2018+ Ford Mustang GT S550 FN

INSTALL DOES NOT REQUIRE REAR BUMPER REMOVAL

For rear valance without Flow-Lock fins click here.

Details

Experience Flow-Lock rear diffuser for your Mustang S550 FN, sharing the same durability and technology as our renowned WRX, Golf GTI & MK3 Focus RS line up which is trusted by car enthusiasts worldwide. The rear valance and diffuser fins will clear the Mustang S550 FN dual exhaust tips with ease, and rear bumper removal is not necessary for installation of the diffuser. 10 year warranty applies for the rear valance (excludes ABS fins).

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 - this means zero exposed hardware giving you the cleanest look for your Mustang S550 FN 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). It is also possible to install when your car is on the ground.

Kit Includes:

• Mustang S550 FN rear valance
• Mustang S550 FN Flow-Lock diffuser fins
• 2 Flow Designs stickers
• Fitting kit

Material & Finish:

• Valance: 10mm thick polyethylene composite, bevelled edges
• Flow-Lock diffuser fins: 4.5mm thick textured ABS 
• Valance: Finish available in gloss black, or scratch-resistant textured matte black
• Flow-Lock diffuser fins: scratch resistant textured ABS plastic
• CNC engraved logo and features
  

Install Instructions (PDF)