well, there are different heat ranges on the spark plugs. the FSM talks about BKR5,6,7,E plugs. try looking for "turbo, spark plugs, heat ranges" in the archives. as far as the wires, the stock ones are fine. I know JGY is (or was) using them on his first turbo se-r. Alex '93 NX2k...with new NGk wires...one of my stock ones broke :-(