Shameless plug: I'm selling a matched set of these in great condition for $85 shipped. I soldered nuts to the baseplates to convert from direct mount to pickup rings, but otherwise not modified in any way. PM me if you're interested.
I metered them and discovered that both are around 10.5k with what looks like a double-thick magnet. Actually, I'm not convinced that the neck pickup is any different than the bridge spec-wise. I know there are a ton of other factors in trying to match them to another DiMarzio, but maybe that little bit of info will help if you want to go aftermarket instead.
And fwiw, a Fusion in the bridge reminded me of the Titan, but lower output. Open, detailed, and aggressive, with maybe a touch less mids.