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Vehicle Info NeededUniversal FireWire Heat Sleeved Plug Wires 8.5mm 8 Cylinder 90° Boot
Ships on 09/10/2026
Lowest Price Guarantee- Universal FireWire Heat Sleeved Plug Wires
- 8.5mm
- 8 Cylinder
- 90° Boot
- Cut-to-Fit
- Black
FAST's FireWire Spark Plug Wires are designed for performance and racing from the inside-out. Having a high powered ignition control is only half the equation when it comes to your engine’s performance; you also need to ensure that the voltage makes it to the spark plug. FireWire Plug Wires effectively filter the electro-magnetic interference and “noise” that occurs within all spark plug wires. A unique reactive core design suppresses EMI ensuring trouble-free operation of the ignition control, EFI system and other on-board electronics. The conductor of the FireWire features the lowest resistance, less than 25 ohms per foot. Less resistance means the most spark energy reaches the plug gap for every firing. The core and conductor are protected with a sleeve of double-layered silicone, which is effective against header heat, oils and abrasion. Silicone boots can withstand 550°F to combat the extreme conditions that wires face under the hood.
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Features:
- The lowest resistance wire available with only 25 ohms per foot
- Extreme suppression capabilities prevent electronic interference
- Low resistance means more spark energy reaches the spark plugs
- Silicone plug boots handle 550°F for long life
- Silicone-on-silicone sleeve construction resists high temperatures and abrasion
- Available in custom, universal and sets with heat sleeve installed
FireWire with Heat Sleeve: The FAST Heat Sleeve is a braided fiberglass sleeve that provides an extra level of protection against heat; withstands up to 1,200°F.
Universal FireWire Kits: FAST FireWire Universal Kits are designed to allow you to route and cut your wires to fit exactly how you prefer. Each wire is supplied with the spark plug terminal and boot installed and the distributor side loose. HEI style and socket terminals and boots, along with a coil wire side, are included with each kit.
Custom FireWire Kits: These kits are cut to specific lengths and terminated on both ends for a direct plug-in installation.
