Key Features
Ceramic Spark Plug Boots Rated to 2,000°F
The standout feature of the Extreme 9000 wire set is its high-temperature ceramic spark plug boots.
Unlike conventional silicone boots, ceramic boots are engineered to withstand:
- Extreme header temperatures
- Turbocharger heat
- Supercharger applications
- Continuous high-performance driving
With a heat rating of up to 2,000°F, the ceramic boots help prevent boot burn-through and spark leakage in demanding environments.
600°F Silicone Wire Construction
The ignition wires utilize premium silicone insulation rated to approximately 600°F.
Benefits include:
- Excellent heat resistance
- Oil resistance
- Moisture protection
- Long-term flexibility
- Increased durability
The heavy-duty insulation helps protect ignition performance even in high-temperature engine bays.
500 Ohms-Per-Foot Ferro-Spiral Core
The wires feature a ferro-spiral wound conductor with approximately 500 ohms of resistance per foot.
Advantages include:
- Reliable spark delivery
- Excellent EMI/RFI suppression
- Stable ignition performance
- Reduced electrical interference
This resistance level provides an excellent balance between spark energy and electronic compatibility.
Designed for High-Performance Engines
The Extreme 9000 wire set is ideal for engines equipped with:
- Long-tube headers
- Turbochargers
- Superchargers
- Nitrous oxide systems
- Performance camshafts
- High-compression builds
The additional heat resistance helps protect ignition components under demanding operating conditions.
Direct Replacement Design
The wire kit functions as a direct replacement ignition wire set for compatible applications.
Benefits include:
- Simple installation
- OEM-style routing
- Reliable electrical connections
- Performance-focused construction
Always compare the supplied wire lengths with your engine layout before installation.
Why Upgrade to Ceramic Spark Plug Boots?
Traditional silicone boots work well for stock applications, but ceramic boots provide several advantages when exhaust temperatures increase.
Benefits include:
- Significantly greater heat resistance
- Reduced risk of boot failure
- Better durability near headers
- Longer service life
- More consistent spark delivery
Ceramic boots are commonly found on race cars and high-horsepower street builds.
Common Symptoms of Worn Spark Plug Wires
If your LS or LT engine is experiencing:
- Engine misfires
- Rough idle
- Hesitation under acceleration
- Hard starting
- Reduced fuel economy
- Check Engine Light
Replacing worn ignition wires may restore proper ignition performance.
Installation Tips
For the best results:
- Replace one ignition wire at a time.
- Route wires away from moving components.
- Keep adequate clearance from headers whenever possible.
- Fully seat each ceramic spark plug boot.
- Inspect spark plugs during installation.
Proper routing helps maximize wire life and ignition reliability.
Final Verdict
The Extreme 9000 Ceramic Spark Plug Wire Set (9070C) is an excellent ignition upgrade for enthusiasts running GM LS3, LS4, LS7, and LT-series engines. With ceramic boots capable of handling temperatures up to 2,000°F, a 500-ohm ferro-spiral core, and a 600°F silicone jacket, this wire set is designed to deliver dependable spark while surviving the extreme heat generated by today’s performance builds.
For LS swaps, track cars, autocross builds, or high-horsepower street vehicles, the Extreme 9000 provides premium heat protection and reliable ignition performance.
Frequently Asked Questions
Why choose ceramic spark plug boots?
Ceramic boots provide dramatically better heat resistance than conventional silicone boots, making them ideal for engines equipped with aftermarket headers or forced induction.
What engines does this wire set fit?
It is designed for GM LS3, LS4, LS7, and many LT-series engines, including compatible pre-HEI and post-HEI ignition systems.
What does 500 ohms per foot mean?
Approximately 500 ohms per foot provides excellent spark delivery while maintaining effective EMI/RFI suppression for modern ignition systems.
Are these wires good for turbo or supercharged engines?
Yes. The ceramic boots are specifically beneficial for engines operating in extremely high-temperature environments created by turbochargers, superchargers, and racing headers.
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