Ignition Coil Pack for 1998-2001 Audi A4 A6 Quattro - 1998-05 Volkswagen Passat 2.8L V6 Compatible with UF-256 C1171 UF256 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 IGNITION COILS FOR 1998-2001 Audi A4 2.8L, 1998-2001 Audi A4 Quattro 2.8L, 1998-2001 Audi A6 V6 2.8L, 1998-2001 Audi A6 Quattro 2.8L, and 1998-2005 Volkswagen Passat 2.8L AUDI and VW owners please check fitment bar and description before you BUY IT as the ignition coil pack can change based on the year/ month of manufacture of your vehicle Compatible Part Numbers: 078905104, 88921391, E510a, 5c1046, 078905101a 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