NGK-R7438-9 (4656) - NGK Racing Spark Plug
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 customers running Stage 1 or beyond with an enthusiastic driving style. Avoid potential misfires when the constraints of tuning are taking their toll on the vehicle.
Features
Fine Wire Centre Electrode Ensures High Durability and a Consistently Stable Spark
Iridium Alloy has an Extremely High Melting Point, Perfect for Today's High-Tech, High Performance Engines
Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
Corrugated Ribs Prevent Flashover
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Copper Core Aids in Heat Removal
Triple Seals Prevent Leakage
Technical Infomation
Type: Resistor type
Gap: .9mm (0.04")
Insulation Projection: .9mm (0.04")
Notes: Racing type
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