- Joined
- January 11, 2001
- Messages
- 15,189
- Reaction score
- 74
- City, State
- McVeytown, PA
- Year, Model & Trim Level
- '18 XLT
Bosch +4's are a MARKETING GIMMICK!!! The laws of physics say that a spark will take the path of least resistance. You won't get multiple sparks or better sparks. Each time it fires, one of the anodes will have a spark between it and the cathode. It may change which anode it fires from each time it fires, but it will only have one spark. People believe that they work better because they are replacing old, worn out plugs with new ones, and they attribute the improvement to the +4 plug, when in fact it is actually due to it being a new plug. Don't waste your money....
And yes, I know what I'm talking about...Been an engineer/physicist for the last 15 years designing electronics/mechanics.
And yes, I know what I'm talking about...Been an engineer/physicist for the last 15 years designing electronics/mechanics.