Will this assembly work with my factory ABS system, or do I need a separate ABS module?

This assembly is ABS-integrated by design. The ABS ring is built in, so your existing ABS module will function without any additional components or recalibration.

Do I need to replace the wheel speed sensor when I install this hub?

Sensor replacement depends on your current setup. Test your existing sensor on the new hub assembly first; if the resistance reading is good and the ABS light stays off after installation, you're fine. If the light returns or the sensor is corroded, replacement at that time is simpler than guessing beforehand.

What hardware do I need for installation?

This assembly includes the hub and bearing unit only. You'll need the factory fasteners from your vehicle—axle nut, caliper bolts, and rotor hardware. Refer to your service manual for torque specs.