Pack of 8 Ignition Coils for 2003-2006 Audi A8 Quattro A6 Quattro Allroad Quattro S4 V8 4.2L 077905115E C1447 UF-418 DIRECT REPLACEMENT/ UPGRADE over your original stock coils. We only use the highest grade materials. This makes our product durable and reliable under extreme conditions while providing High Electrical Resistance, strong Spark from plugs, and being resistant to Corrosion and Abrasion Fitment for Audi A8 Quattro 2006 BGK, Audi Allroad Quattro 2003-2005 BAS, Audi S4 2004-2009 BHF---Engine: V8 4.2L Fitment for Audi A6 Quattro 2005-2006 BNK, Audi A8 Quattro 200 AKB AUX, Audi A8 Quattro 2004-2005 BFM---Engine: V8 4.2L Other Interchangeable/Compatible Part Numbers: C1447, UF-418, 5C1437, 077 905 115C, 077 905 115E, 077 905 115F, E898, 52-1778, IC538, 077 905 115H, 077 905 115Q, 077 905 115T One Year Warranty Eliminate misfire Direct installation into vehicle Increase horsepower Stronger throttle response Durable as they come Custom-made for the road Fit OE equipment with ease Tested in real life situations Most coils comepre-greased