NGK Laser Iridium replacement plugs for BMW N55, S55, N63, and S63 engines. They are one step colder than N55 plugs and factory S55 plugs and suggested for higher boost E85, water/meth injection, and/or upgraded turbocharger applications across all late-model turbo BMW models. We suggest setting the gap down to 0.020", or 0.022” if running a stage 2 map on the N55 engine.
PRODUCT SPECIFICATION
Genuine NGK Laser Iridium Spark Plug
1 Step colder than the factory-fitted spark plugs fitted to N55 & S55 engines
1 Per box. Please order 6 for N55 & S55 and 8 for N63 & S63.
COMPATIBILITY
These spark plugs are for the following BMW engines;
N20
N54
N55
S55
N63
N63TU
B38
B48
S63
S63TU
SHIPPING AND RETURNS
We offer worldwide shipping on all products. If upon receiving your product you wish to return it, we offer a 30-day returns policy. For our in-depth returns information please follow the link."R44 Returns Policy"