Ignition rotor for Porsche 928 S4, GT and GTS : - 928 S4 5.0 - 320hp (M28.41/M28.42) from 1987 to 1991- 928 GT 5.0 - 330hp (M28.47) from 1989 to 1991- 928 GTS 5.4 - 350hp (M28.49/M28.50) from 1992 to 1995 Quantity required per vehicle : 2 Brand Dansk