just picked up JAW Wideband kit and i was wondering about wiring . do i keep stock o2 sensor and mane a new hole in exhaust for the new wideban or do i cut the old one out and wire the jaw into my existing harness. if anyone has diagram what to do please help thanks.

Keep the old sensor as-is, unless the JAW kit has a simulated NBO2 output that our ECU's are happy with, or you are using an aftermarket ECU that can use wideband input.

Weld in another bung for the wideband sensor.

I would also recommend putting the bung for your sensor about 10"-14" down from the turbo.