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Looking for aftermarket parts to modify or upgrade your 2003 Porsche 911 with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.
 IN STOCK 2667The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.... NGK Iridium Spark Plugs Box of 4 (BKR7EIX) 2003-2004 Porsche 911 Carrera / Carrera 4 $55.51 |
 IN STOCK 4285NGK Laser Platinum Series plugs provide high ignitability and longer service life. Laser welded dual platinum surfaces ensure slow wear rate providing stable idel, superior anti fouling, improved fuel efficiency and lower emissions.... NGK Laser Platinum Spark Plug Box of 4 (BKR7EQUP) 2003-2004 Porsche 911 Carrera / Carrera 4 $56.78 |
 OUT OF STOCK 2288Multi-ground electrodes improve ignition capabilities and are less sensitive to increased voltage requirements due to gap growth. Designed to specific manufacturer ignition requirements, NGK's multi-ground plugs maintain all the features of their standard plugs.... NGK Multi-Ground Spark Plug Box of 4 (BKR6EK) 2003-2003 Porsche 911 Turbo 2003-2004 Porsche 911 GT2 $48.50 |
 IN STOCK 95159NGK Ruthenium HX is designed for newer engines which demand high ignitability. Double Fine Electrode (DFE) design promotes spark energy concentration and ignites a wider range of air-fuel ratios, offering improved performance in rich or lean engine conditions.... NGK Ruthenium HX Spark Plug Box of 4 (FR6BHX-S) 2001-2003 Porsche 911 Turbo 2002-2004 Porsche 911 GT2 $68.68 |