Bro, for stock BMW's, i go OEM only. All the hype stuff is good on a website, and bad in practice. If fried 4 prong all manner of plug in m60s, only to go back to bosch supers and have the car run like a champ. Unless doing FI, or tons of other mods, i use stock plugs. It's the same when folks ask about headers. Bmw m60 exhaust systems already deliver such a high level of performance and quality, unless several other upgrades are done, augmentation is worthless

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2002 X5 4.6 IS (Imola on black)
2001 740i M-sport (Alpine on black)
2000 540it M-sport (Titanium on grey)
1995 540i/6 (Hellrotted like a MMM)