Suits PFL Sportback only Details: Borrowing the technology of Flow-Lock, black powder-coated brackets are slipped in-between each diffuser fin and locked into place. With a simple “push and click” action of the fins, the diffuser is assembled and ready for installation. No “L-Brackets” no double-sided tape, no exposed hardware. The assembled diffuser is now ready to be installed on to the car. Bumper removal is not required, only basic hand tools are necessary. A strong and reliable product that is well designed and easy to install. Kit Includes: S3 8V PFL Sportback Flow-Lock rear diffuser 4 black powder-coated steel mounting brackets 4 pairs rear Flow-Lock diffuser fins 2 Flow Designs Stickers Fitting kit Material & Finish: 10mm thick polyethylene composite rear valance with bevelled edges 4.5mm thick Scratch resistant textured ABS Flow-Lock Diffuser Fins Install Instructions Page 1 (PDF) Install Instructions Page 2 (PDF)