Spark plug NGK or OEM FORD

like NGK for plugs and wires on my car.

Buy the spark plugs, NGK brand, off of RockAuto.

Ngk plugs would be perfectly fine but there's nothing wrong with motorcrafts either.

After taking out the plugs they were brown all 4 cyls I replaced them with NGK lasers and wow my car was so much more responsive and it would ride through every gear through high rpm without power cuts or jittering.

If you are having misfires under load, the first check is always ignition, i.e. spark plugs and coils (only factory coils and factory or NGK plugs in my experience).

I run ngk tr6 plugs straight out of the box in my cammed ls1 for $6ish a plug (discounted) i change them more frequently for piece of mind. The car runs mint

I use these in my IE stage 1 MK7. I replace them every 20k, zero issues so far. They could probably go another 10k miles, too, I just replace them early to avoid the ground strap issue that seems to be prevalent.

95K, swapped for NGK laser iridium’s (OEM replacement) plugs and since then have had rough idle but when driving feels fine.

I got 2 cheap sets of these online for a Honda idsi engine (8 iridium plugs required) they turned out to be fake and were burned out in 6 weeks causing it to misfire badly.

I bought a NGK №6 4-pack for 20$ at local parts shop, After the replacement, engine problems began: loss of power, misfires, and severe vibration.