Denso 12-15 Civic Si Iridium Long-Life Power Spark Plug: Single
Part Number: SXU22HCR11S
Inside Continental United States
|Quantity 1 equals 1 spark plug|
Earn 50 reward points. Learn More
Will It Fit Your Vehicle?
Iridium Power® best demonstrates its performance improvement during acceleration. The world's smallest center electrode and specially shaped ground electrode deliver maximum spark energy while withstanding temperatures greater than 4000º F. These features combine to achieve higher ignitability and require lower spark voltage than ever before. As a result, acceleration improves in comparison with normal plugs.
To increase ignitability, the important point is to let the flame kernel produced by the spark to grow unobstructed. Normally, this can be accomplished by widening the spark gap. However, this causes spark voltage to increase, which has the opposite effect. Iridium Power uses DENSO's patented U-Groove ground electrode to achieve maximum ignitability while minimizing required voltage.
- Tapered cut, U-Groove ground electrode
- Worlds smallest 0.4mm iridium center electrode
- Patented 360-degree laser welding assembly process