I did run the Disco with Magnecor's and the stock plugs. After I straigntened out the Magnecors. I went for a drive and the truck seemed a little more repsonsive so I was curious. I let the engine cool and then I switched the out last night. I had a short drive last night and all was well. When I said the drive was pleasent, I was not being sarcastic. It actully was, as soon as I hit the skinny pedal I got feedback. The engine felt very strong this morning.
So I tried both. Stock and Bosch +4's If the SES comes on I'll let you know but those babies are staying I get a sign that the Disco does not like it.
I even numbered the plugs and put them in the Bosch boxes for safe keeping so I could put them back in their original cylinders if necessary. I'm guessing that if the engine did not like these plugs it would have told me right away but for now I'm a happy
