10mm 5-STAR Racing Spark Plug Wires
The 10mm 5-STAR Racing Spark Plug Wires are engineered for high-performance ignition systems where maximum current transfer, stable spark, and reliability are critical.
With an extremely low resistance of only 100 Ohm per meter (compared to factory wires at 3,000–10,000 Ohm per meter), they deliver a stronger and more consistent spark, resulting in improved combustion efficiency and smoother engine operation.
Designed for racing use, yet proven for daily-driven street cars, these wires perform reliably under extreme conditions and are especially effective in turbocharged, supercharged, and LPG (liquid gas) engines, where ignition demands are significantly higher.
Construction & Technology
- 5 individually wound Ni-Cr wire cores
Each core acts as a miniature coil, improving current stability and spark delivery. - Double insulation system
Kevlar reinforcement combined with aramid-fiberglass silicone insulation. - Oversized 10mm diameter
Provides superior insulation, durability, and resistance to electrical loss. - Extreme operating range
From -60°C to +250°C - High voltage capability
Supports ignition systems up to 90,000 Volts
Performance Benefits
- Stronger, more stable spark
- Improved combustion efficiency
- Better throttle response and acceleration
- Potential 2–5% increase in horsepower and torque (depending on engine setup)
- Easier cold starts
- Reduced misfires, especially under load
- Cleaner exhaust gases
- Compatible with all aftermarket performance ignition coils
Ideal Applications
- Naturally aspirated performance engines
- Turbocharged & supercharged engines
- Vehicles converted to LPG / CNG
- Street performance & track use
- First-stage engine upgrades
Lifetime Warranty & Repair Support
The 5-STAR spark plug wires are covered by a lifetime warranty (wire only).
If a connector or terminal ever needs replacement:
- Immediate repair available
- You only pay for the part (typically €2–€4, 16-valve terminals €9)
- All repair parts are kept in stock
⚠️ Comparable terminals from other brands often cost €3–€15 each.
Important Notes
- Designed for maximum performance, not mass-production compromise
- Compatible with all aftermarket performance coils
- For optimal results:
- Spark plug resistance should be below 0.5 Ohm
- Electrode gap should not exceed 0.8mm / 0.030"
- Some FIAT and VW ignition systems may not be compatible with performance wires
Custom Manufacturing Capability
We are one of the few companies able to manufacture custom spark plug wire sets for most vehicles, old or new.
To ensure perfect fit, we may request:
- Visible wire length (excluding boots)
- Total plug boot length (especially for 16V engines)
- Coil and distributor photos (straight or angled boots)
Pricing
- 4-cylinder set: €100
- 5-cylinder set (4 + 1): €115
- Long or special sets (e.g. BMW E36, Ford Sierra Cosworth, Lotus Esprit): price varies
- 6 or 8 cylinders: +€19 per additional cable
- Color: Red only
In-Store Demonstration
At AUTO PRO, you can visually compare YOUR WIRES with OUR 5-STAR Using professional test equipment — free of charge.
- Spark strength
- Resistance values
- Construction quality
