Spark Plug SILZKBR8D8S 97506 Pack of 8

Swap out a my old sparks with these and I immediately notice a difference in my engine performance and roar in my M5. This is a great product at an awesome price.

This spark plug was hard to find,however,I went to Amazon and not only did I find it,I had it the next day.Needed 8 for my car and its running better then ever!

One step colder for a tuned e85 F90 m5

Huge improvement on the ride

Here we are less that 6 mounts and 6000 miles and the plugs have failed, removed them to see what's going on and found them to be fake plugs per the NGK website, please check the plugs when you get them to make sure they have a lot code that can be traced to NGK's site

Product came open! Multiple plugs caused knock that weren't previously there! Had to re install old plugs as a temp fix

Works well

there are some comment on NGK to buy the original only for this seller and the items where original for sure. and NGK is the best gapped to the OEM Specs which you need. for bmw N63 engines