- Remove OEM plastic rear diffuser.
- Fit the tabs along the top edge of the rear diffuser into the slots on the rear bumper.
- Use hardware to bolt the rear diffuser to the OEM mounting points at both ends of the rear bumper.
*Note: this item is designed to fit the C63 facelifted rear bumpers, which includes model years 2012-2014. Please only purchase this item if you have a 2012-2014 C63 AMG Coupe or Facelift Sedan.