NGK 97506 "2 Step Colder" Spark Plug - Turbo BMW Motors Choose your plugs:6-Pack Plugs (6 Cylinder Vehicles) Increased Airflow

Increased Airflow

Remember the JB4 tuner for N55 engines does not require any additional modifications or previous stages

Doc Vu’s S55 tuning applies seamlessly to all known models featuring the S55 engine architecture:

Bmw 328i (2012 to 2016)

2011–2015 – BMW 740Li – N54 / N55

NGK 97506 "2 Step Colder" Spark Plug - Turbo BMW Motors Choose your plugs:6-Pack Plugs (6 Cylinder Vehicles) Increased AirflowThese NGK Laser Iridium replacement plugs are factory standard in BMW N20 & S55 engines and are suggested for most turbo BMW engine including the N54, N55, N63, N63TU, S63, and S63TU applications. They are 2 steps colder than stock N54 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". Beware of counterfeit NGK