Plug gap for 2016 N55?

DanATL · 04-03-2026, 08:04 AM

I'm about to replace the plugs in my 2016 M235i with NGK Iridium laser 97506 plugs. My car is stock except for a BMS Stage1 tune. What should I gap these at? I heard as small as .020 but maybe that's too small given the very mild tune?

jb-slow · 04-07-2026, 08:44 PM

Stock

atek · 04-10-2026, 08:24 AM

0.022-0.024 unless you have good reason to go lower...

04-03-2026, 08:04 AM	#1
DanATL Private 47 Rep 74 Posts Drives: '89 635CSi, '16 M235i, '23 X5 Join Date: Dec 2015 Location: Atlanta iTrader: (0)	Plug gap for 2016 N55? I'm about to replace the plugs in my 2016 M235i with NGK Iridium laser 97506 plugs. My car is stock except for a BMS Stage1 tune. What should I gap these at? I heard as small as .020 but maybe that's too small given the very mild tune? Last edited by DanATL; 04-03-2026 at 12:46 PM..
	Appreciate 0 Tweet Quote

04-07-2026, 08:44 PM	#2
jb-slow Lieutenant 145 Rep 421 Posts Drives: m235i Join Date: Mar 2019 Location: puyallup iTrader: (0)	Stock
	Appreciate 0 Quote

04-10-2026, 08:24 AM	#3
atek I like biscuits 173 Rep 261 Posts Drives: bmw m235i Join Date: Jan 2022 Location: TX iTrader: (0)	0.022-0.024 unless you have good reason to go lower...
	Appreciate 0 Quote