Spark plug OEM BMW or Denso

Almost everyone either runs the HKS plugs or Denso plugs. I personally have had no issues running the Denso plugs.

I use [Denso IKH24's](https://www.fcpeuro.com/products/audi-vw-spark-plug-denso-ikh24). It's the projected tip version of the Denso plug EQT has recommended on their FAQ (IKH01-24).

Use only Honda specified plugs (usually Denso Iridium) and they last 100,000 miles just fine.

I like ac delco. But I recently used denso tt fine wire plugs I two different ls engines. What a difference in power. And gas mileage.

I just replaced mine, at 80k, with Denso PLatinums. The same brand as the stock plugs.

Denso Iridium 1 step colder plugs. Running great on my 2017 Jetta 1.4T

Get the oem denso ones. There is nothing better than oem for that kind of thing.

This is what a 202k mile spark plug looks like on an 2013 Lexus gs350 daily driver. Pretty impressed with it overall. All 6 plugs look exactly like this.

No discernible difference to me, positive or negative. But since I am running APR stage 1, I followed APR's recommendation.

The original dealership where I bought the van installed Denso spark plugs part # SXU22HCR11S which were supposed to have a gap of 0.044 but they all had either 0.039 or 0.040. Apparently no one checked the gap before putting them in.