with what? dremmel or stanley knife?
just found this but waiting for the size of the honeycomb from themhttp://www.ebay.co.uk/itm/BLACK-PLASTIC-RS4-R32-LOOK-RACE-MESH-SUIT-GRILL-BUMPER-/280954520612?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item416a31c424
take a look at mine to compare if it will look like the oem grill...... il get measurements of the small honeycombe holes tomorrow for you
you aint having an opinion from me cos you never bloody listen to it anyway