Recently purchased 91 420SEL and the PO was using Bosch Platinum resistor plugs. I want to replace these with NGX copper, but here's the question. The end of the bosch plug where the wire goes has a small threaded stub. The NGX plug looks like a normal plug.( Slightly larger rounded tip. The NGX will not fit in the current wires. Do I need new wires or is there an adapter.
Thanks