Dimarzio D-Activator Pickup Covers

[deathmetal_mx]

Hi,

I installed a Dimarzio D-Activator X (bridge) and a D-Activator (neck). As they're different pickups (sound, specs, aspect, etc), I want to buy a pair of Humbucker Covers (black) to make both pickups look the same. Based on this, i have a few questions :

1. Where can I get this kind of humbucker pickup covers (online) ?
2. Will any cover fit both pickups ?
3. Can I actually put covers over this kind of pickups ?
4. Will they reduce their output (signal) ?
5. Will they fit inside every pickup pocket of any guitar ?
6. Will I need to modify my pickup in some way (wiring, height, etc) ?

I would really appreciate any information about this.

Thanks