These Genuine Audi R8 coilpacks (part # 06E-905-115-E) are an excellent upgrade for 2.0T FSI/TSI & 2.5l Inline-5 applications with either stock or upgraded engine software. These R8 coilpacks have a higher secondary circuit impedance than factory coils which help eliminate intermittent misfires and rough idle characteristic while improving overall performance. A must have for modified Volkswagen and Audi vehicles!