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Boosted M5 · 05-10-2019, 02:38 AM

I've read that some cars have no problem running stock plugs. I ran a stage 1 with no problem and they had 10k miles on them with stock gap. I think the gapping would be of most importance rather then if it's Bosch or ngk but I'm no expert.

05-10-2019, 02:38 AM	#2
Boosted M5 Private First Class 69 Rep 193 Posts Drives: F10 m5 Join Date: Dec 2018 Location: Sf bay area iTrader: (0)	I've read that some cars have no problem running stock plugs. I ran a stage 1 with no problem and they had 10k miles on them with stock gap. I think the gapping would be of most importance rather then if it's Bosch or ngk but I'm no expert.
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