Looking for sport seats for the 328i, the SE ones are really uncomfortable! I get crazy legs if I sit in them too long

Was thinking about putting a full leather interior but I dont think I'll bother yet as the car has zero rattles in it and I dont want to introduce any!

The would need to be non electric black cloth to match the current interior and in very good condition. No stain rips etc. Will consider half leather too.

Cheers