Autolite XP Iridium Spark Plugs


7 reviews

This variant is currently out of stock

Introducing the new Autolite XP Xtreme Performance Spark Plugs. With an iridium-enhanced, .6 mm finewire design and patented platinum sidewire technology, these plugs provide more focused ignition for better overall ignitability and improved durability.

Independent lab tests prove that Autolite XP Xtreme™ Performance Spark Plugs provide better overall ignitability and durability than many other premium spark plugs. By increasing the size of the flame kernel, you get a 21 percent bigger flame compared to that of standard plugs. The new Autolite plugs ignite more gas and air mixture inside the cylinders to deliver better overall performance. The ignition is also more focused, which provides better and faster fuel combustion, optimizing the vehicles spark plug performance.

Choose XP103's or XP104's from the drop down.

Sold in sets of 6.

Customer Reviews
5.0 Based on 7 Reviews
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Chris C.
Canada Canada
Great brand

This is a company that does more than just deliver a product they stand behind what they say every part you purchase from them is exactly what you would expect from what you have read to what you’ve seen ZZ performance parts Change Your driving experience for the better.And there’s always someone there to help you when you have a question .

Jacob B.
All the freedom

These things work great! I’ve never used the iridium xp’s before but let me tell you they took my rough idling gtp and turned it into an all American freedom machine fueled by premium bald eagle **** 10/10 will definitely buy more

Jacob B.
United States United States
Runs great

Put these plugs in and it’s a different car never used the xp’s before but my gtp went from a rough idling Grand Prix to an all American freedom machine that runs on premium bald eagle **** 10/10 will buy again

Guest G.
as exspected

as exspected

Justin L.
Autolite iridium 104 spark plugs

Worked great! I installed with zzp coils and wires. Easy install (easy as can be on a transverse V6) reduced KR and more peppy throttle response. No more "running rich" MALs....the old plugs were real bad.