Unfortunately, modifying the CSS:VW's takes more than a new part and a set of tools. The plasma canisters, as Dick Vanderhuge said, can have their potency increased, but it's something that can only be done with a machine.
I apologize again for my lack of posting, but I'm having to tie up some loose ends over here. I'll try my best to get a post out there as soon as I can. D: