Well, old harness is in terrible condition also, I am going to change it as assembly, or manufacture it myself (I am licensed B1+B2 mechanic, so I can), but I am little bit confused with spark plugs now. P/N is same, well, transition from Champion to Tempest – REM38E VS UREM38E, where second letter(E) means barrel style, and that U on Tempest plug P/N means, that this plug is made by Tempest :...