This part number 33-2488 comes as a pair

Product Specifications
Height 1.188 in (30 mm)
Width 8.375 in (213 mm)
Length 9.313 in (237 mm)
Package Contents 2 Air Filters

Product Box Height 15.31 in (389 mm)
Product Box Length 11.13 in (283 mm)
Product Box Width 3.56 in (91 mm)
Weight 2.2 lb (1 kg)

Part Numbers
BMW 13727843264
BMW 13727843283
BMW 13727843284
Carquest 93041
Carquest 93042
Hastings AF1665
Mahle LX2074
Mahle LX2075
Premium Guard PA99068
Premium Guard PA99069
WIX 49714
WIX 49715
WIX WA10042
WIX WA40041

K&N Applications for 33-2488 Air Filter
2021 BMW M2 3.0L L6 Gas
2020 BMW M2 3.0L L6 Gas
2020 BMW M4 3.0L L6 Gas, US Models Only
2020 BMW M6 4.4L V8 Gas
2019 BMW M2 Competition Coupe 3.0L
2019 BMW M3 3.0L
2019 BMW M4 3.0L
2019 BMW M4 3.0L
2019 BMW M6 4.4L
2019 BMW M6 Gran Coupe 4.4L
2018 BMW M2 Competition Coupe 3.0L
2018 BMW M3 3.0L
2018 BMW M4 3.0L
2018 BMW M4 3.0L
2018 BMW M6 4.4L
2018 BMW M6 Gran Coupe 4.4L
2017 BMW M6 GRAN COUPE 4.4L V8 F/I - All   
2017 BMW M6 4.4L V8 F/I - All   
2017 BMW M5 4.4L V8 F/I - F10/F11   
2017 BMW M4 3.0L L6 F/I - All   
2017 BMW M3 3.0L L6 F/I - All   
2016 BMW M6 GRAN COUPE 4.4L V8 F/I - All   
2016 BMW M6 4.4L V8 F/I - All   
2016 BMW M5 4.4L V8 F/I - All   
2016 BMW M4 3.0L L6 F/I - All   
2016 BMW M3 3.0L L6 F/I - All   
2015 BMW M6 GRAN COUPE 4.4L V8 F/I - All   
2015 BMW M6 4.4L V8 F/I - All   
2015 BMW M5 4.4L V8 F/I - All   
2015 BMW M4 3.0L L6 F/I - All   
2015 BMW M3 3.0L L6 F/I - All   
2014 BMW M6 GRAN COUPE 4.4L V8 F/I - All   
2014 BMW M6 4.4L V8 F/I - All   
2014 BMW M5 4.4L V8 F/I - All   
2014 BMW M4 3.0L L6 F/I - All   
2014 BMW M3 3.0L L6 F/I - All   
2013 BMW M6 4.4L V8 F/I - All   
2013 BMW M5 4.4L V8 F/I - All   
2012 BMW M6 4.4L V8 F/I - All   
2012 BMW M5 4.4L V8 F/I - All   
2011 BMW M5 4.4L V8 F/I - All