Genuine BMW F87 M2 M Performance Carbon Side Grille Air Breathers 51712453942/3. Part number – 51712453942 & 51712453943. F87 M2 & LCI – including Competition. 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.