APR Iridium Pro Spark Plugs - 14x26.5x16mm - Heat Range 9 (Z1003100) 1839 with a corresponding improvement in

with a corresponding improvement in power and performance

Preceision OE Style or Better

RIGID E-Series

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

4 R Description_ASM Rear EBC RP-1 Race Brake Pads FMSI D1135 2006 thru 2009 PORSCHE 911 (997) (Cast Iron Rotor only) 3

APR Iridium Pro Spark Plugs - 14x26.5x16mm - Heat Range 9 (Z1003100) 1839 with a corresponding improvement inAPR 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