LS 12 Inch Extreme Race Spark Plug Wires for Racing Ignition
When dialing in ignition stability on a Gen III LS swap the Extreme Race Wires 12 Inch spark plug wire set holds resistance at just 25 ohms per foot and blocks stray signals that can disrupt sensitive engine sensors. An optimized 8 mm conductor diameter creates a direct voltage path for each spark event ensuring consistent energy delivery under high RPM loads. A silicone oversleeve rated up to 600 F remains pliable in the header zone and guards against oil and ozone exposure to prevent cracking over time. Finally molded 45 degree boots seat securely on GM LS plug wells and coil packs for effortless routing around exhaust manifolds and true plug and play fitment in most swap configurations.
Precision Conductor Diameter for Consistent Spark Delivery
The 8 mm core diameter is engineered to hold resistance at just 25 ohms per foot, minimizing voltage drop across each wire. By maintaining a direct path for ignition energy, these wires enable the spark plug to fire with uniform intensity on every engine cycle. Consistent spark delivery sharpens throttle response and promotes even combustion across cylinders, which can uncover hidden gains when tuning high RPM performance. This conductor dimension balances flexibility with electrical efficiency to suit the tight routing demands of an LS swap.
Integrated RFI Suppression for Uninterrupted Sensor Signals
Each wire incorporates a specialized resistive element and shielding to block radio frequency interference before it reaches the ECU and knock sensors. This built-in noise protection preserves the integrity of timing and sensor feedback, preventing erratic readings that can disrupt engine management under harsh conditions. With clean signal paths, the ignition system remains in sync even when alternator noise or coil switching would otherwise cause interference. The result is reliable engine control during spirited driving and track sessions.
Robust Silicone Jacket Enduring Extreme Under Hood Temperatures
A thick silicone oversleeve rated to 600 °F stands guard against heat soak from headers and exhaust components. Its resistance to oil, ozone, and chemical exposure prevents cracking or hardening over time, ensuring the insulation remains pliable for neat routing. This material choice also offers abrasion resistance, protecting the core when wires contact frame brackets or chassis rails. By preserving insulation integrity, the jacket minimizes shorts and power loss that could compromise ignition performance.
45 Degree Boot Angle for Streamlined LS Swap Installation
The molded 45 degree boot profile aligns precisely with GM LS plug wells and coil packs, promoting a secure seal against moisture and contaminants. This angled design reduces bending stress at each connection point and simplifies routing around tight header clearances found in many swap applications. Technicians benefit from a plug and play fit that eliminates trial and error when positioning wires, shaving installation time. The boots also help maintain stable contact under vibration to prevent misfires during aggressive launches or cornering.
Count on consistent spark delivery and durable insulation even in the hottest engine bays. For those looking for the same wires but need shorter wires because these are too long see our Extreme Race Wires 8 Inch.