Looking for aftermarket parts to modify or upgrade your Subaru Legacy 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 5463NGK 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 (FR5AP-11) 2004-2004 Subaru Legacy GT / L / L 35th Anniversary 2005-2005 Subaru Legacy i / Limited 2006-2009 Subaru Legacy 2.5i 2007-2009 Subaru Legacy 2.5i Limited / 2.5i Special Edition $53.69 |
OUT OF STOCK 5555NGK 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 (PFR6G-11) 1995-1995 Subaru Legacy Base / LSi 1995-1996 Subaru Legacy LS / Outback 1995-1998 Subaru Legacy Postal 1995-2000 Subaru Legacy Brighton 1995-2003 Subaru Legacy L 1999-1999 Subaru Legacy L 30th Anniversary / Limited 30th Anniversary 2000-2002 Subaru Legacy GT Limited 2000-2003 Subaru Legacy GT 2003-2003 Subaru Legacy L SE $70.06 |

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) 2005-2005 Subaru Legacy GT Limited 2005-2006 Subaru Legacy GT 2006-2009 Subaru Legacy GT spec.B 2007-2009 Subaru Legacy GT Limited 2008-2009 Subaru Legacy 3.0 R Limited 2009-2009 Subaru Legacy 3.0 R 2010-2012 Subaru Legacy 2.5GT / 3.6R Premium 2010-2013 Subaru Legacy 3.6R 2010-2019 Subaru Legacy 3.6R Limited $49.42 |

OUT OF STOCK 92649NGK 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 Platinum Spark Plug Box of 4 (LKAR7BGP-S) 2013-2019 Subaru Legacy 2.5i / 2.5i Limited / 2.5i Premium 2014-2014 Subaru Legacy 2.5i Sport 2017-2019 Subaru Legacy 2.5i Sport $49.42 |

IN STOCK 2756NGK 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-11) 1990-1990 Subaru Legacy Base 1990-1996 Subaru Legacy LS 1990-2003 Subaru Legacy L 1991-1994 Subaru Legacy Sport 1991-1995 Subaru Legacy LSi 1994-1994 Subaru Legacy Alpine Sport / GT / Outdoor / Sun Sport / Touring 1995-1995 Subaru Legacy Base 1995-1996 Subaru Legacy Outback 1995-1998 Subaru Legacy Postal 1995-2000 Subaru Legacy Brighton 1999-1999 Subaru Legacy L 30th Anniversary / Limited 30th Anniversary 2000-2002 Subaru Legacy GT Limited 2000-2003 Subaru Legacy GT 2003-2003 Subaru Legacy L SE $37.31 |
IN STOCK 6619The 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 (LFR6AIX-11) 2010-2012 Subaru Legacy 3.6R Premium 2010-2013 Subaru Legacy 3.6R 2010-2019 Subaru Legacy 3.6R Limited $55.51 |
IN STOCK 93482NGK 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 Laser Spark Plug Box of 4 (SILZKAR7B11) 2013-2019 Subaru Legacy 2.5i / 2.5i Limited / 2.5i Premium 2014-2014 Subaru Legacy 2.5i Sport 2017-2019 Subaru Legacy 2.5i Sport $91.64 |

IN STOCK - LOW 93501The 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 IX Iridium Spark Plug (Set of 4) 2013-2019 Subaru Legacy 2.5i / 2.5i Limited / 2.5i Premium 2014-2014 Subaru Legacy 2.5i Sport 2017-2019 Subaru Legacy 2.5i Sport $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) 2005-2005 Subaru Legacy GT Limited 2005-2006 Subaru Legacy GT 2006-2009 Subaru Legacy GT spec.B 2007-2009 Subaru Legacy GT Limited 2008-2009 Subaru Legacy 3.0 R Limited 2009-2009 Subaru Legacy 3.0 R 2010-2012 Subaru Legacy 2.5GT $55.51 |

IN STOCK 6741NGK 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 (IFR6E-11) 1990-1990 Subaru Legacy Base 1990-1996 Subaru Legacy LS 1990-2003 Subaru Legacy L 1991-1994 Subaru Legacy Sport 1991-1995 Subaru Legacy LSi 1994-1994 Subaru Legacy Alpine Sport / GT / Outdoor / Sun Sport / Touring 1995-1995 Subaru Legacy Base 1995-1996 Subaru Legacy Outback 1995-1998 Subaru Legacy Postal 1995-2000 Subaru Legacy Brighton 1999-1999 Subaru Legacy L 30th Anniversary / Limited 30th Anniversary 2000-2002 Subaru Legacy GT Limited 2000-2003 Subaru Legacy GT 2003-2003 Subaru Legacy L SE $70.82 |

OUT OF STOCK 127NGK 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 Laser Iridium Spark Plug Box of 4 (SIFR6A11) 2010-2012 Subaru Legacy 2.5i / 2.5i Limited / 2.5i Premium $90.22 |
OUT OF STOCK 373NGK 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 Laser Iridium Spark Plug Box of 4 (SILFR6B8) 2010-2012 Subaru Legacy 2.5GT $90.22 |
IN STOCK 6481NGK 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 Laser Iridium Long Life Stock Heat Spark Plug (Box of 4) 2008-2009 Subaru Legacy 3.0 R Limited 2009-2009 Subaru Legacy 3.0 R $72.75 |
IN STOCK - LOW 7505NGK 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 Laser Iridium Spark Plug Box of 4 (SILFR6C11) 2010-2012 Subaru Legacy 3.6R Premium 2010-2013 Subaru Legacy 3.6R 2010-2019 Subaru Legacy 3.6R Limited $90.22 |
IN STOCK 7913NGK 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 Laser Iridium Long Life Spark Plug Box of 4 (SILFR6A) 2005-2005 Subaru Legacy GT Limited 2005-2006 Subaru Legacy GT 2006-2009 Subaru Legacy GT spec.B 2007-2009 Subaru Legacy GT Limited $76.05 |

OUT OF STOCK 7787NGK standard plugs are constructed for longer life and optimum performance.... NGK Nickel Spark Plug Box of 4 (LFR6C-11) 2010-2012 Subaru Legacy 3.6R Premium 2010-2013 Subaru Legacy 3.6R 2010-2017 Subaru Legacy 3.6R Limited $52.83 |

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) 2005-2005 Subaru Legacy GT Limited 2005-2006 Subaru Legacy GT 2006-2009 Subaru Legacy GT spec.B 2007-2009 Subaru Legacy GT Limited 2008-2009 Subaru Legacy 3.0 R Limited 2009-2009 Subaru Legacy 3.0 R 2010-2012 Subaru Legacy 2.5GT / 3.6R Premium 2010-2013 Subaru Legacy 3.6R 2010-2019 Subaru Legacy 3.6R Limited $68.68 |

OUT OF STOCK 92274NGK 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 (LKAR7AHX-S) 2013-2019 Subaru Legacy 2.5i / 2.5i Limited / 2.5i Premium 2014-2014 Subaru Legacy 2.5i Sport 2017-2019 Subaru Legacy 2.5i Sport $68.68 |
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) 2010-2012 Subaru Legacy 2.5i $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) 1997-1999 Subaru Legacy GT 1998-1998 Subaru Legacy GT Limited 2004-2004 Subaru Legacy GT / L 2005-2005 Subaru Legacy i 2006-2009 Subaru Legacy 2.5i 2007-2009 Subaru Legacy 2.5i Limited / 2.5i Special Edition $68.68 |

IN STOCK 5553NGK standard plugs are constructed for longer life and optimum performance.... NGK Traditional Spark Plug Box of 4 (BKR6ES-11) 1990-1990 Subaru Legacy Base 1990-1996 Subaru Legacy LS 1990-2003 Subaru Legacy L 1991-1994 Subaru Legacy Sport 1991-1995 Subaru Legacy LSi 1994-1994 Subaru Legacy Alpine Sport / GT / Outdoor / Sun Sport / Touring 1995-1995 Subaru Legacy Base 1995-1996 Subaru Legacy Outback 1995-1998 Subaru Legacy Postal 1995-2000 Subaru Legacy Brighton 1999-1999 Subaru Legacy L 30th Anniversary / Limited 30th Anniversary 2000-2002 Subaru Legacy GT Limited 2000-2003 Subaru Legacy GT 2003-2003 Subaru Legacy L SE $35.52 |