NGK Spark Plugs - Competition R7438-9 2.0TFSI Ea888 Gen 3 (Singles)
£65.00 inc. VAT
NGK Racing Competition Side-Electrode Spark Plug Set - 2.0TFSI EA888 Gen3 (IS38)
NGK R7438-9 (NGK stock no. 4656) is a competition racing iridium spark plug designed for high-power turbocharged engines. It is a non-projected tip design, making it much more resistant to ground strap failure under extreme cylinder pressures than conventional projected-tip plugs.
These NGK Racing Competition plugs are a competition replacement for the standard Golf 'R' Mk7, Leon Mk3 Cupra, TT-S Mk3 and S3 8V Spark Plugs.
We recommend these for customers running Stage 2 and Above.
They differ to the other NGK Competition plugs in that they have a Angled Ground Strap type Electrode. This means that the internal ceramic is protected
Typical applications
These are commonly used on highly tuned EA888 Gen 3 and EA855 VAG engines, such as:
- VW Golf R Mk7/Mk7.5
- Audi S3 8V
- Audi RS3 8V
- Audi TTRS 8S
- SEAT Leon Cupra
- Skoda Octavia vRS
They're generally recommended for big turbo, high boost, or 700+ bhp builds rather than mild Stage 1 or Stage 2 cars.
Specifications
| Specification | Value |
|---|---|
| NGK Part No. | R7438-9 |
| NGK Stock No. | 4656 |
| Type | Racing Iridium |
| Heat Range | 9 (very cold) |
| Thread | M14 × 1.25 |
| Reach | 26.5 mm |
| Hex | 16 mm |
| Factory Gap | 0.7 mm (0.028") |
Recommended gaps
| Setup | Gap |
|---|---|
| Factory | 0.70 mm (0.028") |
| Stage 2 | 0.60–0.65 mm (0.024–0.026") |
| Big turbo / high boost | 0.60 mm (0.024") |
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