Can I Use Platinum or Iridium Plugs with Nitrous Injection?

Iridium - yes. Platinum - no... Read More

What is a Pulse Plug?

Pulse plugs are the latest in performance ignition technology. They are essentially a spark plug with an internal pulse circuit... Read More

What Performance Should I Expect from a Pulse Plug?

Results vary by driver and vehicle, however, every user reports improvement in at least 1 area... Read More

Is Pulse Technology Safe for My Vehicle?

Yes. Pulse technology will in no way harm your vehicle... Read More

Can an Oxygen Sensor Fail?

Can an oxygen sensor suddenly stop working? Read More

Proper Gapping Instructions

Proper Gapping Instructions Read More

What Causes My Vehicle to Make Clunking Noises when Driving Over Bumps Even Though My Shocks are New?

Most likely there is nothing wrong... Read More

How Do I Get Support for My Car Club or Forum?

SparkPlugs.com is happy to support forums and car clubs... Read More

Why Don't You Show Parts for My Vehicle?

Each year when a new vehicle is released, the application data has to trickle down from your vehicle manufacturer, through parts manufacturers, and can take up to 2 years before the data gets to us... Read More

Can I Get NGK IRIWAY, IRITOP, IRIMAC and IRIMAX Series Plugs?

Essentially, Yes. Read More