99-23 GM Truck V8 Perf Coil-Near-Plug Wire Conn Kit w/9in Lead/Blue Jacket/Blk Sleeve - Granatelli Motor Sports

Want a cleaner LS engine bay without giving up ignition performance? These 12-inch Granatelli 0-Ohm wires combine strong spark delivery, precise routing and a bold blue finish built for serious performance.

The Granatelli 28-1629HTBLB 0-Ohm High-Performance Spark Plug Wire Set is engineered to transfer maximum available ignition energy directly from the coil to the spark plug. The result is a performance-focused ignition upgrade designed for stock, modified and high-output GM LS applications.

Each wire measures 12 inches from boot end to boot end and features blue high-temperature silicone wire with black Kevlar spark plug boots, giving you added heat protection, dependable routing and a sharp performance look under the hood.

MAXIMUM SPARK. CLEAN 12" ROUTING.

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
• 12" 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 digital tuning systems
• Designed for compatible GM LS coil-near-plug ignition systems
• OE-style connectors for quick, clean installation
• Excellent for naturally aspirated, supercharged, turbocharged and nitrous applications
• Ideal for performance builds, coil relocations and custom routing
• Pre-assembled – no crimping or modification required
• Complete V8 set – 8 wires
• Made in the USA

Easy Bolt-On Performance: The OE-style terminals and pre-assembled construction make installation straightforward. Simply remove the existing wires and replace them with the Granatelli 0-Ohm set—no crimping, trimming or complicated ignition conversion required.

12" Length for Flexible, Controlled Routing

The 12-inch boot-to-boot length provides additional routing flexibility for performance setups, custom engine bays and coil-near-plug applications where a shorter wire may not provide the ideal path. The result is a cleaner installation with less unnecessary tension on the wire and terminals.

Built for High-Heat Performance

Headers, turbo systems and high-performance exhaust components can dramatically increase under-hood temperatures. The 8mm blue high-temperature silicone construction and black Kevlar boots provide added protection in demanding environments while giving your engine bay a distinctive performance appearance.

Compatible GM LS Engine Families

Designed for compatible GM LS engines using the correct coil-near-plug layout and 12-inch boot-end-to-boot-end wire configuration.

Common LS Engine Sizes

Important Fitment Notice: These wires measure 12 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.