APR Iridium Pro Spark Plugs - 14x26.5x16mm - Heat Range 9 (Z1003100) 1839 Preceision OE Style or Better

Preceision OE Style or Better

Special Comments: 4 Pad Set 2009 Mercedes-Benz SL600 Engine: 5

RIGID E-Series

The CD-7 Carbon triggers the alarm page whenever a user definable condition is met

APR Iridium Pro Spark Plugs - 14x26.5x16mm - Heat Range 9 (Z1003100) 1839 Preceision OE Style or BetterAPR Iridium Pro Spark Plugs are the excellent upgrade for tuned engines. Our spark plugs are made from Iridium, which is one of the strongest materials you can use in this type of application. They run cooler, resist preignition, last longer than other materials with higher melting points, and even require less voltage to produce a strong spark. The electrode is harder and stronger than other materials, can dissipate heat more easily, is better