NGK 97506 SILZKBR8D8S Spark Plug
Upgraded 2 steps colder spark plugs for N54 and N20 and 1 step colder for N55 and S55 BMW engines.
With the smallest tip diameter available, OE Iridium spark plugs provide superior ignitability and long service life. The iridium/platinum surfaces ensure a slow wear rate, providing stable idle and superior anti-fouling.
Laser-welded iridium centre electrode tip
Platinum disc welded to backside of ground electrode provides long life
Faster starts and quicker acceleration
Better fuel economy and lower emissions
Best OEM Iridium spark plug available
M135 M235 335 435 M2 M3 M4