ABC News: New Spark Plug Saves on Gas & Reduces Emissions
www.HaloPlugUSA.com http ABC News story about a revolutionary new type of spark plug that can help drivers to significantly increase their gas ...
Limit Pushing - Pulstar Spark Plug Test
Well...as far as power goes...they work...... More tests will have to be done on gas mileage but they do increase power at least on my Celica GT ...