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

Big spark doesn’t require a long wire. Granatelli packs 0-Ohm performance into a compact 8-inch package built for LS engine bays where every inch matters.

The Granatelli 28-1811HTBLB 0-Ohm High-Performance Spark Plug Wire Set is engineered for LS applications that demand maximum available ignition-energy transfer without excess wire length. The compact design keeps coil-to-plug routing tight, clean and controlled while delivering the performance expected from a serious ignition upgrade.

Each wire measures 8 inches from boot end to boot end and features blue high-temperature silicone wire with black Kevlar spark plug boots, combining extreme-heat protection with a bold performance appearance.

8 INCHES. 0-OHM. NOTHING WASTED.

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
• 8" overall length – measured boot end to boot end
• Blue high-temperature silicone wire construction
• 8mm silicone jacket rated for temperatures above 800°F
• Black Kevlar spark plug boots for added heat protection and durability
• Spiral-wound stainless-steel core helps suppress EMI & RFI interference
• Compatible with modern ECUs and aftermarket tuning systems
• Designed for compatible GM LS coil-near-plug ignition systems
• Compact 8-inch design helps eliminate unnecessary wire slack
• Excellent for tight engine bays, custom LS builds and relocated ignition setups
• Ideal for naturally aspirated, supercharged, turbocharged and nitrous applications
• Pre-assembled and ready to install
• Complete V8 set – 8 wires
• Made in the USA

Perfect for Tight LS Installations: The true 8-inch boot-to-boot length keeps the connection between the ignition coil and spark plug compact. Less unnecessary wire means cleaner routing, less clutter and a more purpose-built appearance under the hood.

Put More of Your Coil's Energy to Work

Your ignition coils already generate the voltage—the spark plug wire determines how efficiently that energy reaches the plug. Granatelli's 0-Ohm conductor design minimizes resistance through the wire so the maximum available ignition energy reaches the spark plug, helping support strong spark delivery under demanding engine loads.

800°F+ Heat Protection

Headers, turbo systems and high-performance exhaust components create serious heat around the spark plugs. The 8mm blue high-temperature silicone jacket and black Kevlar boots are built to handle demanding under-hood environments while maintaining dependable ignition-wire performance and a distinctive blue performance look.

Compatible GM LS Engine Families

Designed for compatible GM LS engines using the correct coil-near-plug layout and 8-inch boot-end-to-boot-end wire configuration.

Common LS 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 and black Kevlar boots provide increased heat protection, but the wires should still be routed with proper clearance from headers and other extremely hot exhaust components whenever possible.