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

Bring bold color and serious spark performance together with Granatelli 10-inch yellow 0-Ohm spark plug wires—built to keep coil-to-plug routing clean while delivering maximum available ignition energy to your LS or LT.

The Granatelli 28-1545HTY 0-Ohm High-Performance Spark Plug Wire Set is engineered for performance applications that benefit from a compact 10-inch boot-to-boot wire length. The shorter configuration helps reduce unnecessary wire slack while maintaining a direct, controlled path between the ignition coil and spark plug.

Built with 8mm yellow high-temperature silicone insulation rated beyond 500°F and a stainless-steel spiral-wound core, these wires combine heat resistance, EMI/RFI suppression and true 0-Ohm performance for demanding street, strip, naturally aspirated and boosted GM LS & LT applications.

BRIGHT LOOK. SHORT ROUTING. STRONG SPARK.

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

• True 0-Ohm resistance for maximum available ignition-energy transfer
• 10" overall length – measured boot end to boot end
• 8mm yellow high-temperature silicone insulation
• Heat resistant beyond 500°F
• Stainless-steel spiral-wound core helps suppress EMI & RFI interference
• Designed for compatible GM LS & LT coil-near-plug ignition applications
• Compact 10-inch configuration helps reduce unnecessary wire slack
• Excellent for clean engine-bay routing and tight coil-to-plug layouts
• OE-style connections for straightforward installation
• Compatible with modern ECUs and aftermarket tuning systems
• Excellent for naturally aspirated, supercharged, turbocharged and nitrous applications
• Pre-assembled – no cutting, trimming or crimping required
• Complete V8 set – 8 wires
• Made in the USA

Compact 10" Configuration: These wires are designed for applications where the ignition coils sit relatively close to the spark plugs. The 10-inch boot-to-boot length helps keep routing tight and organized while reducing unnecessary loops and excess wire inside the engine bay.

0-Ohm Technology for Maximum Spark Delivery

Granatelli's 0-Ohm conductor design is engineered to minimize resistance between the ignition coil and spark plug so the maximum available coil energy reaches the plug. Strong, consistent ignition delivery becomes increasingly important as RPM, cylinder pressure, boost and horsepower increase.

10" Length for Clean Coil-to-Plug Routing

The 10-inch boot-to-boot configuration is ideal for coil-near-plug LS and compatible LT installations where longer wires would create unnecessary slack. The compact length helps maintain a direct routing path and gives the finished engine bay a cleaner, more professional appearance.

High-Temperature Yellow Silicone Construction

Headers, turbo systems and performance exhaust components can expose ignition wires to extreme under-hood temperatures. The 8mm yellow high-temperature silicone jackets are rated beyond 500°F, providing dependable protection against heat and demanding operating conditions while adding a bold performance look to the engine bay.

Performance Without Electronic Interference

A stainless-steel spiral-wound inner core helps suppress EMI and RFI interference, helping protect modern ECUs, digital ignition systems and tuning electronics from unwanted electrical noise while maintaining Granatelli's 0-Ohm performance.

Compatible GM LS & LT Applications

Designed for compatible GM coil-near-plug ignition applications using the correct 10-inch boot-end-to-boot-end wire configuration. Granatelli specifically identifies 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.