Re BMC Air Filters

Hi,
I have purchased some BMC air Filters for my SLK32 and they have arrived today,however they look to big just by looking at them.

I am not fitting them myself i was going to give them to Indie to fit at next service in a couple of weeks.

So i dont look a fool and not got the Torx screw to ge covers off has anyone got the diamentions of the filters that suit my car.

The one sent are 307mm x 120mm

Thanks