Granatelli GM LS & LT 0-Ohm 10" Black High-Temp Spark Plug Wires – 28-1545HTB

Built for clean routing and serious ignition performance, Granatelli 10-inch 0-Ohm black spark plug wires give your LS or LT a compact, high-temperature connection from coil to plug without unnecessary resistance getting in the way.

The Granatelli 28-1545HTB 0-Ohm High-Performance Spark Plug Wire Set is engineered for performance applications that need a compact 10-inch boot-to-boot wire length, dependable heat resistance and maximum available ignition-energy transfer.

Built with 8mm black high-temperature silicone insulation and a spiral-wound stainless-steel core, these wires combine a stealthy factory-style appearance with performance-focused construction for street, strip, naturally aspirated and boosted LS & LT builds.

KEEP IT SHORT. KEEP THE SPARK STRONG.

GUARANTEED 5–10 HP GAIN

Naturally aspirated applications can see a measurable horsepower increase, while supercharged, turbocharged and nitrous combinations may see even greater gains.

Key Features

• 0-Ohm conductor design for maximum available ignition-energy transfer
• 10" overall length – measured boot end to boot end
• 8mm black high-temperature silicone insulation
• Designed to withstand 500°F+ temperatures
• Spiral-wound stainless-steel core helps suppress EMI & RFI interference
• Designed for compatible GM LS & LT coil-near-plug ignition applications
• Compact 10-inch length helps eliminate excess wire slack
• OE-style connections for simple installation
• Excellent for naturally aspirated, supercharged, turbocharged and nitrous applications
• Ideal for LS swaps, performance builds and custom engine bays
• Compatible with modern ECUs and aftermarket ignition systems
• Pre-assembled – no cutting, trimming or crimping required
• Complete V8 set – 8 wires
• Made in the USA

Easy Bolt-On Ignition Upgrade: Replace your existing wires with the pre-assembled Granatelli 0-Ohm set. OE-style connections make installation straightforward with no cutting, trimming, crimping or custom wire assembly required.

10" Length for Tight, Controlled Routing

The 10-inch boot-to-boot configuration is ideal for coil-near-plug applications where the ignition coils are positioned close to the spark plugs. The compact length reduces unnecessary wire slack and helps create a cleaner, more organized engine bay.

0-Ohm Technology for Maximum Spark Delivery

Conventional resistance-style wires can consume part of the ignition energy traveling between the coil and spark plug. Granatelli's 0-Ohm design is engineered to minimize that loss so more of the ignition coil's available energy reaches the plug. Strong, consistent spark delivery becomes increasingly important as RPM, cylinder pressure, boost and horsepower increase.

Built to Handle Serious Under-Hood Heat

Headers and performance exhaust systems can create extreme temperatures around the spark plugs. The 8mm black high-temperature silicone insulation is engineered for 500°F+ environments, providing dependable protection against heat, abrasion and vibration in demanding street and performance applications.

Compatible GM LS & LT Applications

Designed for compatible GM coil-near-plug applications that use the correct 10-inch boot-end-to-boot-end wire configuration. Granatelli specifically lists several popular LS-family engines for this wire set.

Common Engine Sizes

Important Fitment Notice: These wires measure 10 inches from boot end to boot end. Engine family or displacement alone does not guarantee physical fitment. Compare your existing wire length, ignition coil location, spark plug boot configuration and routing before ordering.

Heat Notice: The high-temperature silicone construction provides increased heat protection, but proper clearance from headers and other extremely hot exhaust components is still recommended whenever possible.