ECCPP Ignition Coils Pack of 4 Compatible with Audi A3/Audi A4/Audi A4 Quattro/Audi A6 Quattro1998-2007 UF411 UF437 IGNITION COIL PACK FITMENT - Replacement ignition coil for Audi A3/Audi A4/Audi A4 Quattro/Audi A6 Quattro 1998-2007 HIGH QUALITY REPLACEMENT - Made of top quality materials,for higher stability and reliability, meet or exceed OEM standards,it helps solve the issue cased by bad coils such as shake and eliminate misfire FUNCTIONS - This new premium ignition coil can fit your vehicles perfectly and produce a high output energy, which can keep your engine running well and smoothly BUYER NOTICE - Please read the fitment list carefully beforehand to avoid ordering the improper coils, remember to prevent putting the ignition coils under the hot or wet environment COMPATIBLE PART NUMBERS - UF411, UF437, UF580, 07K905715F, 07K905715A, 07K905715B, 07K905715C, 07K905715D, 07K905715E