NGK-BPR7EIX (Iridium) Spark Plugs (set of 4) - EVO1-8, Galant VR4 4G63T
Regular price
$90.00
inc. GST
Product details
- Vendor NGK
- SKU MK-BPR7EIX4
Specifications:
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Thread: 14 mm
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Reach: 19 mm
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Hex size: 13/16" (21 mm)
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Heat range: 7
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Resistor: Yes
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Electrode material: Iridium center / Nickel ground
NGK Spark Plug Comparison – EVO1–8, Galant VR4 (4G63T)
| Feature / Spec | BPR7EIX (Iridium IX) | BPR7ES (Copper) | BPR8EIX (Iridium IX – 1 Step Colder) | BPR8ES (Copper – 1 Step Colder) |
|---|---|---|---|---|
| Electrode Material | Iridium center, nickel ground | Copper core, nickel ground | Iridium center, nickel ground | Copper core, nickel ground |
| Center Electrode Diameter | 0.6 mm fine-wire | 2.5 mm standard | 0.6 mm fine-wire | 2.5 mm standard |
| Lifespan | ~40,000–50,000 km (high performance use) | ~10,000–15,000 km (performance use) | ~40,000–50,000 km (high performance use) | ~10,000–15,000 km (performance use) |
| Spark Strength | Strong, concentrated spark for improved throttle response | Good spark, weaker consistency at high boost | Strong, concentrated spark for extreme conditions | Good spark, weaker consistency at high boost |
| Heat Range | 7 | 7 | 8 (colder) | 8 (colder) |
| Performance Suitability | Street & track, mild–moderate mods | Budget or temporary replacement | High-boost, track, or heavily modified engines | High-boost on a budget, frequent changes needed |
| Gap Stability | Excellent – resists wear and erosion | Poor – gap widens quickly under boost | Excellent – resists wear and erosion | Poor – gap widens quickly under boost |
| Price Range | Mid-range | Lowest | Mid-range | Lowest |
| Best Use Case | Tuned EVOs, spirited driving, long service | Cheap short-term fix | Tuned high-boost EVOs needing detonation control | High-boost budget builds, regular replacement needed |