G30/G31/G38 5 Series Gloss Black CTM DiffuserGloss Black CTM Rear Diffuser for BMW G30 G31 G38 5 Series Transform the rear appearance of your BMW 5 Series with the CenCal Motorsport Gloss Black CTM Rear Diffuser. Designed for enthusiasts who want a sportier, more dynamic look, this diffuser adds aggressive styling inspired by BMWs M Performance line while maintaining precise OEM fitment. The CTM design introduces bold fins and aerodynamic contours that enhance the cars stance and give it a true