Hi

I just bought a couple of Bosch WS7F plugs from Pep Boys today. I asked for Champion RCJ7Y and these were supposed to be the replacement. The package for the Bosch plugs says that they replace Champion CJ7Y plugs not RCJ7Y. I believe that the R stands for resistor and that resistor plugs suppress noise.

Does anyone know if these Bosch plugs are OK or will I be getting ignition noise by not using a resistor plug?

Thanks

Hank