Pinball Pro kits are awesome. I even put the full kit in a JP i had, even though some would call me mad. Huge difference and well worth the $$$.
what sort of money ? is the kit ? (looks good too Pete)
Brett,
The Twister sub is the dearest at $89 plus postage as it suits the lastest Sterns as well and its a powered sub so I think $120 including postage the bally/williams are $69 plus postage. I did this one first to see the result next I'll order one for my ToM and WH20 then all my games have subs, small outlay for a huge difference really.
Peter