If you've had an 'incident' with a parking curb and damaged your air deflector that sits below/ behind the factory front spoiler
(also referred to as the air dam), here is the factory replacement to make your car look brand new again.
2002-2006 R53 Cooper S Hardtop
2005-2008 R52 Cooper S Convertible
For the front spoiler / lower lip that mounts in front of this lower wind deflector, see NMX7607.