EMG makes a P style pup, called a P6.
The tech at EMG says it only works with 3" spacing at bridge. What 6 string, do you know, is 3 inches at the bridge ?
In Depth info for the EMG EMG-P6
EMG EMG-P6
The EMG-P is one of the most popular bass pickups ever made. Both on
stage and in the studio, countless pros use it because they find its
fidelity, definition, and sensitivity superior to high impedance
pickups. It has a true natural presence, powerful lows, and a
punchy mid-range. Designed with single-pole ceramic magnets,
each side of the pickup is fully balanced for even output levels and
consistent attack. In addition to the standard EMG-P Pickup,
the EMG-P5 and EMG-P6 are available for use in five and six string
basses respectively. The P covers standard string spacings up to
2.2"; the P5 up to 2.6"; the P6 up to 3.0". All three models have
exactly the same exterior dimensions and fit in standard P pickup rout
