NGK-R7438-9 (4656) – NGK Racing Spark Plug

NGK-R7438-9 (4656) – NGK Racing Spark Plug

NGK-R7438-9 (4656) – NGK Racing Spark Plug

Sold Individually. You must add the required number of plugs to your cart.

Gapping/Setup

These plugs come pre-set from the factory and do not require “gapping” the ground electrode is extremely delicate so we advise you do not attempt to adjust it.

Recommended for bespoke track vehicles or customers running high-powered Stage 3 or beyond with an enthusiastic driving style. Avoid potential misfires when the constraints of tuning are taking their toll on the vehicle.