has anyone used the bosch plugs with 4 grounds so you have a more direct spark. they are supposed to be real special and help your vehicle run,start,idle,.. better.also wonder how much they are

Dan

 

In my opinion, I don't think that they will improve anything besides bosch's sales if you buy them. Stick with the Motorcraft Platinums that Ford designed the engine for.

Just my opinion though,


Brian

 

I spoke to many mechanics before I switched my plugs. None of them had anything nice to say about Bosch of any flavor. They say stick with motorcraft or expect to see trouble.

 

The 4 pin Bosch plugs, like the Splitfires, are a marketing gimmick.

Stick with the recommended Motorcraft or Autolite replacement unless you know EXACTLY what you are doing.

Whatever the Bosch plugs cost, they aren't worth it.

Steve

 

I have used NGK's for the past 10 years without any issues what so ever.
Used them in the Lightning, Cobra, '01 SCrew, and now the '04 SCrew.