My ZX-2 has 74K on what I assume are the original Motorcrafts.
I had picked up these Champions a while back when a local chain went out of business.
I installed the Champions and immediately felt the idle was lower and erratic, power was down and I
got a sulfur like odor. After about 2 miles my 'SERVICE ENGINE SOON' LIGHT CAME ON.

I went to Advance Auto (with the wife's car) and bought the OE Motorcrafts and everything is back to normal.

It's hard to believe that a plug (that's supposedly the correct application) could make such an immediate (negative) difference.

I should have known when the boots wouldn't even go all the way down onto the Champions.

My advice....stick with Motorcrafts.