NGK Spark Plug SILZKBR8D8S 97506 Pack of 6

Great price! Look and perform OEM for what I can tell thus far.

Ordered 3 sets of these over time , fits various bmw models and work great every time .

Overall inspection of spark plugs looks excellent. I don't have a way of verifying if these are legit or not. Packaging material looks authentic also ceramics, threads, contacts, washers and iridium tips looks solid. Please note they are magnified. There is a laser engraved M25S on the ceramic also. With my thorough inspection, I believe these are legit. I cannot rely on tube videos since those 6 point type NGKs. I'm giving it a 4 stars for now to be fair and I will update it after I installed and verify performance and if the misfire on no.4 cylinder goes away. I switched coils 4 and 5 see if the misfire follows on 5 then it's the coil. I have MHD stage 1 plus on my 2016 Z4 3.5is, and the misfire just happened recently. The CEL reset itself after restart. The Bosch plug looks OK. The thread is coated with Anti Sieze compound. I will post an update review soon. Just waiting for the gapping tool. Some recommend 0.22 and others 0.18 for 2 step colder plug. I will gap it at 0.20 to be on the safe side for now. Update: I duplicated the acceleration that caused the misfire on cylinder 4 and no misfire on 4 or 5 cylinder. I decided to gap it at .022 since .020 is too narrow for a colder plug. I could feel the difference in smoothness running at idle. It seems like my power decreases a little bit but it just actually runs much smoother in all RPM ( no redline )than before. I really think that these plugs are genuine and if you added more HP on your N54 engine, switch to these plugs.

Always a good product

Man, dang ol' NGK spark plugs, man, I tell ya what, man, they just, uh, work like a charm, man. You got that, uh, smooth, uh, fire, man, just like dang ol' lightning bolt, man, right in your engine, man. Fits in there, snug as a bug in a rug, man, no fuss, no muss, just run, run, run, man. I mean, dang ol' reliable, man, start right up, every time, like clockwork, man. If you ask me, man, in my humble opinion, man, NGK, uh, they got it goin' on, man, for sure.

So far so good! They looked awesome when I inspected them. We will see.

Once you check the specifications on what to gap them at then you’re golden, solid product

Now I read quite a few of the lower reviews for this 6 pack of plugs and was worried a small bit. ***Please do note** that this part does fit bmw's with an n54 or n52 at the very least. I have used these plugs in the past and was even using them at the time of ordering from amazon. DO NOT use for better mpg or spark unless its needed, these run 2 steps colder and unless your running for performance than itd be best to use the 1 step colder NGK or regular bosch plugs. The worries I did have however came from the pricing. Not from being high, but from being low. Finding these plugs on other sites came to a low-high of around 82-90USD rather than the 77.43 found here. Adding to the fact with amazon shipping I can get it next day or rather within the week for free rather than the other sites taking 2 weeks or more without added shipping. My concerns started with these prices when I had read reviews where the plugs were badly damaged and cracked. However, I was happy to see that all 6 plugs have arrived safely to my house with no issues. Though replacing these had nothing to do with my actual issue the originals of these plugs that I had replaced had outlived even my ignition coils. After having replaced the true cause of my issue (the ignition coils) these plugs have run just as well as the last set I got from another site. Will come back and save this for future services.

👍🏻

Good item and yet cheaper here

Bought these for my slightly tuned N55 BMW. Adjusted gap slightly and they went in easily. highly recommend. Paid a fair price for them as I didn’t want to chance getting knock offs. Would do it again! Or maybe will and another 50,000 miles

If you're going to push the limits of your car, you might as well get these to ensure a precise and reliable spark. The engine feels like it's been given a new youth. BMW X5 35i 2012