So I tried looking for some forums that gave me a definite answer but I couldn't seem to find one. Correct me if I'm wrong but I want the "C" Version of the ignition coils, and is it okay to have NGK plug and wires?? I was going to buy them off of mazmart. Why are the OEM more, and should I just go with those instead?
MAZMART - Serving The Mazda Community Since 1980. RX8 Ignition

 

Yes the ignition coils you want have to be revision C. As far as plugs and wires go NGK is fine for both because they made the OEM plugs for our cars and also I've been running NGK wires with no Problems.

 

I just installed the BWD/intermotor coils and NGK plugs and wires from Advance Auto parts.
The intermotor coils were of a much better quality material than the coils I took out !!!!!
Good thread here on that !!!!!