Genuine BMW M Performance Carbon Air Curtains Pair. Part numbers; 51118077353 / 51118077354. Enhance the look and functionality of your BMW with these genuine front bumper trim covers. Designed to perfectly fit the factory bumper, these high-quality components complete the front air intake sections, giving your vehicle a clean, premium finish while ensuring optimal airflow. Compatible for the G22 and G23 4 Series. COTSWOLD HEREFORD PARTS – GENUINE BMW & MINI. We are an authorised BMW & MINI Retailer- every item we supply is brand new and genuine; sourced directly from BMW UK. Additional charges may apply for: Channel Islands, Northern Ireland, Republic of Ireland, Scottish Highlands & Islands. Faulty items: notify us within 7 days of the end of the sale for a free replacement. Looking for Something Else? We can offer fitment in our workshop if required, please contact directly. Customer Service & Feedback. Cotswold BMW & MINI Hereford Roman Road, Hereford, HR1 1LN.