NGK 94201 Spark Plug for BMW Gen 1 B48 & B58 engines BMW MST provides larger caliber pipes

MST provides larger caliber pipes to increase the airflow

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

the OEM cold air intake tube remains fully functional

Most are simply repackaged oil catch cans from smaller / lower power motors shoe horned in to place in the turbo BMW engine bay

and smoother power delivery

NGK 94201 Spark Plug for BMW Gen 1 B48 & B58 engines BMW MST provides larger caliber pipesThese 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