99-23 GM LS2/LS3/LS6/LS7/LS9/LSA Hi-Perf Coil-Near-Plug Wire Conn Kit w/Blue Jacket - Granatelli Motor Sports

When space is tight, every inch matters. Granatelli 8-inch blue 0-Ohm spark plug wires give your LS or LT a short, clean coil-to-plug connection built to deliver strong spark energy without unnecessary wire length getting in the way.

The Granatelli 28-1811HTBL 0-Ohm High-Performance Spark Plug Wire Set is engineered for compact coil-near-plug installations where clean routing and maximum available ignition-energy transfer are critical. With a true 8-inch boot-to-boot length, these wires help eliminate excess slack and keep the engine bay organized.

Built with 8mm blue high-temperature silicone insulation rated beyond 500°F and a spiral-wound stainless-steel core, the 28-1811HTBL combines high-temperature durability, EMI/RFI suppression and true 0-Ohm performance for demanding GM LS & LT applications.

8 INCHES. ZERO-OHM. MAXIMUM SPARK DELIVERY.

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
• 8" overall length – measured boot end to boot end
• 8mm blue high-temperature silicone insulation
• Heat resistant beyond 500°F
• Spiral-wound stainless-steel core helps suppress EMI & RFI interference
• Designed for compatible GM LS & LT coil-near-plug ignition applications
• Compact 8-inch configuration helps eliminate unnecessary wire slack
• Excellent for tight engine bays and custom ignition layouts
• Ideal for LS swaps and relocated coil configurations
• OE-style fit and finish
• 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

Designed for Tight Engine Bays: At only 8 inches from boot end to boot end, these wires are ideal when the ignition coils sit close to the spark plugs. The compact configuration helps reduce clutter, eliminate unnecessary loops and create a cleaner, more controlled installation.

Maximum Spark Transfer in a Compact Package

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

8" Length for Precise Coil-to-Plug Routing

The 8-inch boot-to-boot configuration is ideal for compact coil-near-plug layouts, custom engine bays and ignition systems where longer wires would create unnecessary slack. The shorter length keeps routing direct and gives the finished engine bay a cleaner, purpose-built appearance.

High-Temperature Blue Silicone Construction

Headers, turbo systems and performance exhaust components can create intense heat around the spark plugs. The 8mm blue high-temperature silicone jackets are rated beyond 500°F and designed to withstand demanding under-hood conditions while maintaining dependable ignition performance.

Performance Without Electronic Interference

A spiral-wound stainless-steel core helps suppress EMI and RFI interference, making these wires compatible with modern ECUs, digital ignition systems and aftermarket tuning equipment while maintaining Granatelli's 0-Ohm performance.

Compatible GM LS & LT Applications

Designed for compatible GM coil-near-plug applications using the correct 8-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 8 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.