Audi - A4 S Line B9 (Version with single exhaust tip on one side): Maxton Rear Diffuser V1Rear Valance V. 1 Audi A4 S Line B9 (Version with single exhaust tip on one side) FITS: Audi A4 S Line Sedan B9 2015 2019 Audi A4 S Line Avant B9 2015 2019 ** The rear valance is not compatible with the towbar ** COMPLETE SET CONTAINS: > Rear Diffuser COLOUR: > Gloss Black This product requires the removal of the original diffuser, self tapping screws are needed to secure fitment of the new diffuser. Our full fitting manual can be found here: REAR