Hello,

So recently was reading about spark plugs how they have different types and might improve performance and reliability of the car and looks like most people say that NGK Iridium Spark Plugs are the way to go.

So I was planning to get a set but there is so many different ‘numbers’ so I’m not sure which one fits my 2022 IS350 FSport AWD? I always thought that all spark plugs are build with the same size/standard.

 

Have you tried searching for something like "IS 350 spark plugs"? NGK makes spark plugs for a lot of different makes and models; simply searching for their products is not a good way to look.


Denso makes the original equipment spark plugs. The part number is - 90919-01263.

If you don't like the original plugs, why is that?

 

Thanks, i forgot to update but yeah I found them on website:
https://www.proimporttuners.com/part...plugs-set.html

If it comes to OEM plugs - i mean I don’t mind using them but if there is better alternative that might help the engine/performance and they are better quality, why not? Unless there are some drawbacks using Iridium aftermarket spark plugs then i’m ready to listen

 

Basically I was just trying to see if there is anything specific you are trying to achieve. If not, probably best to stick to OE.

I used NGK Laser Platinum spark plugs as replacements on my Mk7 GTI, and it felt exactly the same to drive as it did with the OE plugs (which, I believe, were also manufactured by NGK - just with a VW sticker instead of an NGK sticker). To me, that's a good thing. Spark plugs really come into play if you are tuning the car or boosting it somehow. Otherwise, the plugs by themselves probably won't do anything.

 

Won't make much difference on a NA stock car, keep the saw heat range unless your running nitrous or force induction. I prefer iridium since they last longer.