Avoid their branded plugs that they recommend for k04 cars....Not for the reason you might think.
They don't come gapped properly for our motors so you have to adjust the center electrodes. When I was sizing them at first I started noticing something really odd, like the metal was waaay to easy to move and I was over sizing them....The metal they're made of is really soft. So I had to pull back out and this caused the demise of my motor. I should've listed to my instincts after gapping so many plugs before, something wasn't right.
Fast forward a few days afterwards and as I was driving as the engine was warming up I felt a hesitation and then I really distinct ping and then more....then combustion was misfiring HARD.
Long story short the electrode had fallen off in cylinder 1 and created scoring all down the walls. The melted and burnt remains of electrode was pooled up in the oil that collected. I think the ring took a pieces of shrapnel as well.
I have pictures but I don't think it would help much. Just avoid these things, I asked about the quality and where they were made and the support said he couldn't say like as if they were made by some reputable manufacturer, but I have to beg to differ on the quality especially now. I should've never put those things in when I knew something was up.
Stick with the NGK's, bosch or Berus and save yourself ruined motor. I'm hoping the metal flakes didn't get into my turbo bearing via oil or that the metal didn't hit the turbo props.
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