Looking for aftermarket parts to modify or upgrade your Audi A6 Quattro with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.

IN STOCK 2397NGK standard plugs are constructed for longer life and optimum performance.... NGK Copper Core Spark Plug Box of 4 (BKUR6ET-10) 1997-1997 Audi A6 Quattro Avant / Base $48.50 |

IN STOCK - LOW 1675NGK 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 (PFR7S8EG) 2013-2015 Audi A6 Quattro Premium / Premium Plus $69.30 |
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) 2005-2006 Audi A6 Quattro Base $70.06 |
IN STOCK 6458NGK 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 for Audi/VW Box of 4 (PFR6Q) 1995-1996 Audi A6 Quattro Avant / Base 2000-2004 Audi A6 Quattro Base $70.06 |

OUT OF 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) 2013-2015 Audi A6 Quattro Premium / Premium Plus $55.51 |
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) 2005-2006 Audi A6 Quattro Base $37.31 |
IN STOCK 3764The 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-11) 2002-2004 Audi A6 Quattro Avant 2002-2006 Audi A6 Quattro Base $55.51 |
OUT OF STOCK 5648NGK 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 (IFR6Q-G) 1995-1996 Audi A6 Quattro Avant / Base $72.69 |
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) 1995-1996 Audi A6 Quattro Avant / Base 1998-2001 Audi A6 Quattro Avant 1998-2004 Audi A6 Quattro Base $55.51 |

IN STOCK 94833The 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 Laser Platinum Spark Plug Box of 4 (PLFER7A8EG) 2016-2020 Audi A6 Quattro Premium Plus 2017-2020 Audi A6 Quattro Premium 2018-2018 Audi A6 Quattro Sport $70.13 |

IN STOCK 5344NGK 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 Long Life Spark Plugs Box of 4 (IFR6D10) 2002-2004 Audi A6 Quattro Avant / Base $73.51 |

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) 2005-2006 Audi A6 Quattro Base $70.82 |

OUT OF STOCK 5874NGK 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 (PFR6U-11G) 2002-2004 Audi A6 Quattro Avant / Base $70.06 |
IN STOCK 94460NGK 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 (PFR8S8EG) 2009-2011 Audi A6 Quattro Avant / Base 2012-2014 Audi A6 Quattro Premium 2012-2018 Audi A6 Quattro Premium Plus / Prestige 2017-2017 Audi A6 Quattro Competition 2018-2018 Audi A6 Quattro Premium / Sport $70.13 |

IN STOCK 3199Multi-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 (BKR6EQUP) 1998-2001 Audi A6 Quattro Avant 1998-2004 Audi A6 Quattro Base $56.78 |
OUT OF STOCK 5547Multi-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 (PFR6W-TG) 2007-2011 Audi A6 Quattro Base $77.43 |
IN STOCK 5592Multi-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 (PFR7W-TG) 2005-2008 Audi A6 Quattro Base 2006-2008 Audi A6 Quattro Avant $77.43 |

OUT OF STOCK 7969NGK standard plugs are constructed for longer life and optimum performance.... NGK Nickel Spark Plug Box of 4 (BKR6EKUB) 1998-2001 Audi A6 Quattro Avant 1998-2002 Audi A6 Quattro Base $52.92 |

IN STOCK 92400NGK 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 (FR7BHX-S) 2005-2008 Audi A6 Quattro Base 2006-2008 Audi A6 Quattro Avant 2013-2015 Audi A6 Quattro Premium / Premium Plus $68.68 |
OUT OF STOCK 95125NGK 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 (LFER7BHX) 2016-2020 Audi A6 Quattro Premium Plus 2017-2020 Audi A6 Quattro Premium 2018-2018 Audi A6 Quattro Sport $68.68 |

IN STOCK 94279NGK 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 (FR6AHX-S) 2000-2006 Audi A6 Quattro Base $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) 1997-2001 Audi A6 Quattro Avant / Base $68.68 |

IN STOCK - LOW 7092NGK 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 Single Platinum Spark Plug Box of 4 (BKR6EGP) 1995-1996 Audi A6 Quattro Avant / Base 1998-2004 Audi A6 Quattro Avant 1998-2006 Audi A6 Quattro Base $41.29 |

OUT OF STOCK 5767NGK standard plugs are constructed for longer life and optimum performance.... NGK Standard Spark Plug Box of 4 (BKR6EQUA) 2003-2004 Audi A6 Quattro Base $57.42 |

IN STOCK 5553NGK standard plugs are constructed for longer life and optimum performance.... NGK Traditional Spark Plug Box of 4 (BKR6ES-11) 2005-2006 Audi A6 Quattro Base $35.52 |