Bosch – OEM Replacement

The factory spark plug for the N54 is a Bosch 3 Prong Plug. These are capable of handling up to 475hp according to Burgertuning.

Part#:
0242140507 – ZGR6STE2 Bosch

Gap: Since these plugs are 3 prong, you cannot and do not need to Gap them.

NGK “2Step Colder” Spark Plug – Upgrade

For better knock protection, we would recommend upgrading to the NGk “2Step Colder” plugs. These are a Laser Iridium direct replacement that are suggested if you are running higher boost with E85, water/meth, or an upgraded turbo.

Part#: 97506
Gap: 0.020″

If you are running a stock car or have mostly light mods installed such as an intake, catless/high flow downpipes, and a tune, the OEM plugs would be sufficient. If you already have many aftermarket mods installed and are running or planning on E85, it would be best to go with the NGK “2Step Colder” plugs.