B58 Spark Plug Replacement DIY & How to Read Your Plugs

The best Spark Plug for your B58:    • **READ DESCRIPTION** The Best Spark P...  

How to replace the spark plugs in your B58
This shows how to avoid removing the Dorch fuel line when swapping the cylinder 5 plug

More details on how to pick the right spark plugs:    • **READ DESCRIPTION** The Best Spark P...  

I recommend stock plugs at stock gap for stock and modified cars.

B58 Gen 1:
BMW: 12120040551
NGK (OEM Supplier): 94201 (SILZKGR8B8S)
Champion (OEM Supplier): 9425 (RERX4ZWYPB-1)

B58 TU:
BMW: 12122455258
NGK (OEM Supplier): 95248 (SILZKGR8C8S)
Champion (OEM Supplier): OE259 (RERX4ZWYPD-1)

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