Looking for aftermarket parts to modify or upgrade your 2003 Mazda Protege with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.

OUT OF STOCK 2647NGK 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 Double Platinum Spark Plug Box of 4 (PFR5G-11)) 1995-2003 Mazda Protege ES 2001-2003 Mazda Protege LX 2002-2003 Mazda Protege DX $68.27 |

OUT OF STOCK 7100NGK G-Power Series offers the performance and durability of platinum at a competitive price. Fine wire platinum tipped center electrode reduces required voltage for better starts, superior acceleration and increased fuel economy.... NGK G-Power Spark Plug Box of 4 (ZFR6FGP) 2003-2003 Mazda Protege Mazdaspeed $40.63 |

OUT OF STOCK 4095NGK Laser Iridium plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high-tech, high-performance engines.... NGK Iridium Spark Plug Box of 4 (IZFR6F11) 2003-2003 Mazda Protege Mazdaspeed $74.36 |
OUT OF STOCK 6441The 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 (ZFR6FIX-11) 2003-2003 Mazda Protege Mazdaspeed $54.25 |
OUT OF STOCK 7994NGK Laser Iridium plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high-tech, high-performance engines.... NGK Iridium Spark Plug Box of 4 (IFR5E11) 1995-2003 Mazda Protege ES 2001-2003 Mazda Protege LX 2002-2003 Mazda Protege DX $69.00 |

OUT OF STOCK 3271NGK 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 (PZFR6F-11) 2003-2003 Mazda Protege Mazdaspeed $68.51 |

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) 2003-2003 Mazda Protege Mazdaspeed $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) 1999-2003 Mazda Protege DX / ES / LX $66.88 |

IN STOCK 4291NGK 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 (ZFR6F-11) 2003-2003 Mazda Protege Mazdaspeed $36.42 |