This black 10.4mm spark plug wire set gives high horsepower with low resistance and features a ferrite spiral-wound core that provides 50-ohms of resistance per foot. The wires are dyno-tested to produce better fuel mileage, include 180-degree boots, and are radio frequency interference and EMI compatible for ignition systems.
Product Features
- Black 10.4mm wires increase horsepower and torque
- Silicone inner and outer jackets provide heat protection
- Provides 50-ohms resistance per foot
- Radio frequency interference and EMI compatible for ignition systems
- Includes 180-degree boots
These have held up great and I would’ve gone through two sets of JBAs … I got these for my ’06 GTO, since I have JBA shorties installed I had to go with something other than the stock plugs. I tried using the JBA plugs with the OEM heatshields, but found the cables were a little dodgy and the heatshields always had a knack for getting just loose enough to make some noise from vibrating. These have held up great and I would’ve gone through two sets of JBAs in the same amount of time, just be sure to do something about the heat to protect them as well as some…
Improved MPG Installes these with NGK iridium IX spark plugs on a 09 avalanche and have gone from 17.0- 17.4 mpg to 19.0- 19.3 mpg. No noticeable added power but thats fine. These will pay for themselves in no time thanks to the milage gain.
Five Stars Great