MSD SPARK PLUG, 11IR5 (EACH) 14mm x 3/4, 13/16 HEX, FLAT

Description

MSD’s spark plugs are
engineered to improve the
efficiency of the combustion
process to create the most
power possible combined with
increased durability. The
center tip of the plug is made
from iridium to promote the
best spark and increase
resilience. A proprietary
ceramic material enhances the
dielectric strength of the
plug housing forcing the
spark, even under extreme
cylinder pressures, to jump
across the plug gap to the
ground electrode. This
electrode is machined to
expose more spark to the
incoming gases to promote the
most effective combustion
event possible.

• Proprietary plug design inside
  and out
• Designed for
  use on high performance
  vehicles that utilize high
  output ignition
  systems
• Machined
  electrode increases exposure
  to the flame to improve
  combustion
• MSD’s
  proprietary ceramic formula
  provides the highest
  dielectric
  strength
• Yttrium
  ground electrode reduces the
  chance of
  pre-ignition
• Iridium
  tip improves cold
  starts
• Designed to
  outlast other performance
  plugs on the track or on the
  street
• All spark plugs
  tested prior to packaging and
  shipping
• Shorty-style
  plugs for applications where
  space is
  limited

What makes
MSD’s Iridium plugs a cut
above the competition? Besides
MSD’s race winning experience
of firing 330 mph top fuel
cars, the endurance of 500
mile stock car racing and the
brutal expectations of
off-road racing, our new spark
plugs are designed to perform
from the inside out.