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Looking for in-stock aftermarket parts to modify or upgrade your 2003 Mitsubishi Eclipse with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.
 IN STOCK 6418The 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 Plug Box of 4 (BKR6EIX) 2003-2005 Mitsubishi Eclipse GTS / Spyder GTS $54.25 |
 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) 2003-2005 Mitsubishi Eclipse GTS / Spyder GTS $66.88 |
IN STOCK 96457NGK 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 (FR5BHX) 2000-2004 Mitsubishi Eclipse RS 2000-2005 Mitsubishi Eclipse GS 2001-2005 Mitsubishi Eclipse Spyder GS $66.88 |
 IN STOCK - LOW 6364NGK standard plugs are constructed for longer life and optimum performance.... NGK Standard Spark Plug Box of 4 (BKR6ES) 2003-2003 Mitsubishi Eclipse GTS / Spyder GTS $35.09 |
 IN STOCK 6962NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching.... NGK V-Power Spark Plug Box of 4 (BKR6E) 2003-2005 Mitsubishi Eclipse GTS / Spyder GTS $36.15 |