Looking for aftermarket parts to modify or upgrade your 2004 Mitsubishi Lancer 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 1483NGK 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 Copper Core Box of 4 (LFR6CGP) 2004-2004 Mitsubishi Lancer Sportback / Sportback Ralliart 2004-2006 Mitsubishi Lancer Ralliart $49.42 |

IN STOCK 4055The 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 Stock Heat Spark Plugs Box of 4 (BPR7EIX) 2003-2005 Mitsubishi Lancer Evolution $55.51 |

IN STOCK 93893The 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 IX Spark Plug Box of 4 (LFR6AIX) 2004-2004 Mitsubishi Lancer Sportback / Sportback Ralliart 2004-2006 Mitsubishi Lancer Ralliart $55.51 |

OUT OF STOCK 3656NGK 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/Platinum Spark Plug Box of 4 (LZFR6AI) 2004-2004 Mitsubishi Lancer Sportback / Sportback Ralliart 2004-2006 Mitsubishi Lancer Ralliart $58.54 |

IN STOCK - LOW 93420NGK 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 (LFR6BHX) 2004-2004 Mitsubishi Lancer Sportback / Sportback Ralliart 2004-2006 Mitsubishi Lancer Ralliart $68.68 |

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) 2002-2004 Mitsubishi Lancer LS 2002-2006 Mitsubishi Lancer OZ Rally 2002-2007 Mitsubishi Lancer ES $68.68 |