*Different from the Valved Twin Sound which is a muffler bypass when valves are open*
and long-term savings thanks to its washable
this specific alloy was chosen for its sonic resonance properties
but in addition this system has two exhaust valves
BMC Air Filter FB742/08 – McLaren MP4-12C, 540C, 570S/GT, 650S & 675LT PORSCHE > 987.1 Cayman *Different from the Valved TwinWashable High Flow V8 Air Filter for McLaren Supercars For true McLaren performance, meet the BMC Air Filter FB742 08designed as an OEM style fit for the McLaren 12C, 540C, 570 series, 650S, and 675LT (V8 turbo models from 20112021). With a cylindrical fullmoulded design and multi layer cotton gauze media, this filter delivers superior airflow while filtering down to 7 micronsboosting power, throttle response, and engine protection. Installation is