Spark plug Bosch or NGK

I just got Bosch ones for my 2gr in the Lexus. Worked well, no complaints. And they weren’t badly priced

Only use NGK.

I would go for NGK. Using this brand on all my cars so far, I would not risk a switch. Although a compatible Denso will be equal for the short/mid/term.

At 101k miles I recommend that maintenance package if it hasn\u2019t been done before and you\u2019re not mechanically include. Spark plugs were $80 for NGK plugs and I have diag tools + experience to inspect my own so cost is $100.

I believe BOSCH were the OEM for the spark plugs on these. I went with Copper/Nickel plugs the the originals were Platinum, again I believe, I'm not 100 percent on that. I'm using a shortened maintenance schedule because I use the car for Auto and Rallycross so I'm ok with changing the plugs a bit more often.

I buy the OEM ngks every time. I find cars CAN be picky about what plugs you get.

I picked up a set of new VW Atlas sparkplugs of FB MKTplace locally for a good price and before I tossed them in one of my cars I decided to verify all of the spark plug differences and to reserve the research here are my results:

NGK all the way, 100% of the time.

I don't trust hks, too many copycat them.

I personally refuse to put anything Bosch made in my cars. All were genuine Bosch parts from my local parts place that has never done me wrong.

First it was their wipers, paid good money for them, squeeled worse than the worn old ones. Figured it's a fluke.

Then I had a set of spark plugs, they were gapped correctly, but the car ran like absolute garbage and I couldn't figure it out until I put the probably 20 year old Valeos back in and it ran fine again.

Then I had a crankshaft sensor that was bad out of the box, and that was the last straw for me. I don't care if it's coincidence or a bad batch, or if they've improved it since, I'm done with any Bosch parts unless it's NOS from the early 2000s or earlier.

My 2000 with California emissions (regular cat and then two pre-Cats at the exhaust headers) would only run properly with the oem spec NGKs. Threw Bosch in their once and it ran terribly.