Ngk Iridium Spark Plug Tr55Ix (8 Pack) For Ford Mustang Gt 1996-2004 4.6L/281

Ngk Iridium Ix Spark Plugs Feature An Ultra-Fine Center Electrode That’S Designed Just Thick Enough To Ensure The Maximum Durability And Life Of The Spark Plugs-And Just Thin Enough To Create An Accurate And Consistent Spark. They Represent The Ultimate Evolution Of Spark Plug Technology And Performance. Iridium Is The Hardest Metal Used In Spark Plugs Today-Six Times Harder Than Platinum.