AMS Performance Carbon Intakes - F80 M3 | F82/ F83 M4Boost the performance of your 2015 2018 BMW M3 or 2015 2020 BMW M4 with AMS Performance's cutting edge carbon fiber air boxes. These air boxes are meticulously designed to seal out hot engine bay air, ensuring your engine gets a consistent supply of cool, fresh air. With neodymium magnetic box lids, accessing the filters for maintenance is a breeze. The AMS Performance's air boxes also feature full intake ducts that draw in only cold air from the