Granatelli Motor Sports Performance Spark Plug Wires 28-1275S

Granatelli Motorsports Performance Ignition Wires for GM 5.7L / 350 V8 Engines

More Spark. More Power. Better Efficiency.

Upgrade your GM 5.7L 350 V8 with Granatelli Motorsports High-Performance Ignition Wires — engineered to deliver stronger spark energy, improved throttle response, better fuel efficiency, and increased horsepower. Whether your vehicle is a daily driver, street performance build, or weekend cruiser, these ignition wires are designed to help your engine run cleaner, stronger, and more efficiently.

Why Upgrade to Granatelli Performance Wires?

• 0 Ohm Resistance Technology: Delivers maximum ignition energy from the coil to the spark plug for a stronger, more consistent spark.
• Increased Horsepower & Torque: Designed to improve combustion efficiency, helping unlock additional power from your GM 350 engine.
• Improved MPG Potential: A stronger spark can help create a cleaner burn, supporting better fuel economy when properly tuned.
• Direct OEM Replacement: Built for easy installation with no major modifications required on most applications.
• OBD-II Safe: Designed to work properly with modern vehicle electronics and fuel injection systems.
• RFI/EMI Suppression: Patented technology helps reduce radio frequency and electromagnetic interference for smooth operation.
• High-Temperature Protection: Premium silicone boots and durable wire construction are built to handle demanding engine bay conditions.

Built for Performance and Reliability

Granatelli Motorsports ignition wires are built with a stainless conductor, secure snap-lock spark plug terminals, and a durable 8MM jacket with fiberglass-reinforced protection. This construction helps improve conductivity, resist heat, and provide long-lasting performance in real-world driving conditions.

Unlike ordinary replacement spark plug wires, Granatelli’s patented 0 Ohm ignition wire technology is designed to move more spark energy to the plug while still controlling electrical interference. The result is better spark delivery, improved engine response, and stronger overall ignition performance.

Ideal For:

• GM 5.7L 350 V8 engines
• Chevy small block performance builds
• Street cars, trucks, and muscle cars
• Daily drivers looking for better response and efficiency
• Engines with headers, upgraded ignition systems, or performance modifications

Upgrade Your GM 350 Ignition System

If you want a simple bolt-on upgrade that helps improve spark delivery, horsepower, throttle response, and fuel economy, Granatelli Motorsports Performance Ignition Wires are a smart choice for your GM 5.7L 350 V8. Built for performance, durability, and real-world drivability, these wires are made to help your engine perform the way it should.