The design of EMG active pickups doesn't allow access to the individual coil outputs from the pickups. As such, it's not possible to wire coil taps or pickup phase switches in the traditional manner. We do provide a number of alternative accesories to help you simulate some of these tone mods.
To create the sound of a split coil pickup, you can either change to the EMG-89 pickup which contains both a dual-coil humbucker and single-coil pickup selectable by a switch, or you can add the EMG DMSK Dual Mode Switch Kit which lets you customize a switchable high-pass filter to create a sound reminiscent of a single-coil pickup. One advantage of using these devices are that they will retain their low-noise performance, unlike a split coil pickup which will be quite buzzy compared to the humbucker mode.
The EMG PI2 Phase Inverter actively inverts the phase of an EMG pickup giving you a true out-of-phase effect, controllable by a switch.