NGK B58 One-Step Colder Iridium Spark Plugs
NGK Brand B58 One step colder (Heat Range 9) iridium spark plugs. These spark plugs are One step colder than the OEM NGK94201 plugs that come in the Gen1 B58s and the same heat range as the OEM Gen2 B58 plugs made by Champion.
We understand some owners prefer NGK over the Champions, so you now have an NGK option that matches the heat range of the OE245 Champions in the Gen2 B58s.
These plugs have a shorter reach also move the spark further up out of the chamber to promote better overall combustion by not interfering with the air fuel charge. Being further out of the combustion chamber also helps keep the plug cooler as a whole. Being a true heat 9, this could be closer to a 10 due to the reach.
We offer these individually so increase quantity as needed. These are Genuine Brand New NGK plugs.
NOTE: these plugs are not needed for stock turbo power level B58s. You do not need these just because you are tuned or running ethanol. These are special case plugs for higher power builds beyond 700-800whp. Below that power level, we recommend remaining with the OEM plug and gap for your specific B58 application.