NGK 94201 Spark Plug for BMW Gen 1 B48 & B58 engines BMW The ARM N54 DCI kit

The ARM N54 DCI kit utilizes two pleated and inverted dry media high-flow air filters to increase the overall filter surface area

Walbro 525 (F90000285)

MST provides larger caliber pipes to increase the airflow

Pre-assembled with genuine Walbro 535 pump

General discussion forum with a detailed description of the JB4: https://www

NGK 94201 Spark Plug for BMW Gen 1 B48 & B58 engines BMW The ARM N54 DCI kitThese NGK 94201 Laser Iridium replacement plugs are specifically designed for the Gen1 BMW B48 B58 engine. Suggested for all factory and tuned applications, including those running E85, WMI, and or larger upgraded turbochargers. We suggest setting the gap down to 0. 022" using a BMS gapping tool. Beware of counterfeit NGK plugs being sold for $5 10 each on eBay and Amazon. They do not offer the same performance, lifespan, and knock resistance. NGK