E92 M3 Bootspolier

Hi Guys
Some help please...
A friend of mine has bought an E93 335i coupe...
Wants to put on an E92 M3 bootspolier, but BMW Centurion will not order it for him, because they say they need a VIN number of an E92 M3 only, they cannot sell it to him with a VIN number of a 335....

Any ideas of where he can purchase a spolier like this?...must be an original bmw part...

Pic of the required spolier attached...

thanks