Taylor 10.4 MM wire sets for Buick V6 Engines. Taylors best 10.4mm high performance wire for street and race applications. Choose the Spiro-Wound Core for todays Hi-Tech Electronics, Stereos, On-Board Computers, and Electronic Ignition Systems. The 409 ignition wires provide continuous heat protection up to 600-degrees Fahrenheit. Perfect against down pipes. Taylor 10.4 features 102,000 volts dielectric strength. With three layers of 100% silicone and a tightly wound, heat treated fiberglass braid, the 409 is the most durable and dependable wire today. The 409 is available in three wire colors to choose from, Black, Red, or Blue.