51 71 0000 G HARTGE aerodynamic kit in PUR-RIM and primed, with ABE homologation by the KBA, consisting of:
HARTGE front spoiler, HARTGE rear skirt, HARTGE left and right side sills (only in connection with standard aluminium running boards – no. 328), HARTGE wheel arch extensions front * and rear (* with air intakes)

for xDrive30d, xDrive35d and xDrive35i (only in connection with HARTGE stainless steel tail pieces with quadrilateral tail pipes 18 71 0400) and for xDrive50i (only in connection with HARTGE stainless steel rear silencer with quadrilateral tail pipes 18 71 0495)

18 71 0400 F HARTGE stainless steel tail pieces with quadrilateral tail pipes (large version) left and right for xDrive30d, xDrive35d and for xDrive35i (only in connection with HARTGE adapter 18 71 0320) (incl. connecting pipe for standard rear silencer) (only in connection with HARTGE aerodynamic kit 51 71 0000)

18 71 0320 N HARTGE adapter for xDrive35i

18 71 0495 F HARTGE stainless steel rear silencer with quadrilateral tail pipes (large version) left and right for xDrive50i (export version / sound +) (only in connection with HARTGE aerodynamic kit 51 71 0000)