Originally Posted by 98CoupeV6
And I had the same exact question when I was looking to buy spark plugs and saw the Bosh 4's, so I did a ton of research on an engineering database and read a lot of technical papers
What did you do after all the research? which one did you install?
So the bottom line is Bosh 4's will not make any difference in performance and generaly Spark plugs does not make a diefference in performance of the engine? is that what everybody is saying?