They're DiMarzio DP169 Virtual P-90's
They sound great!
From the Web:
"The original single-coil "soapbar" design had a special sound; low notes were solid and not tubby - they had an almost "piano" tone quality - while high notes were fat all the way up the neck. DiMarzio thought this was a devastating combination, and naturally wanted to reproduce this sound without 60-cycle hum. In the end, they found the best approach was to use patented Virtual Vintage technology to create the DP169 Virtual P-90 Humbucker Pickup. The two coils are tuned to different frequency ranges and output voltages, so tone and balance can be tuned by adjusting pole piece heights. It's almost the same effect as adjustable high-fidelity speaker crossovers.
Tech Talk: The Virtual P-90 is a little raw-sounding: high notes have a little more snap, and low notes more growl. If you have a fairly warm-sounding guitar and amp setup, the Virtual P-90 would be a good choice for neck and bridge positions."