The APR high-performance ignition coil packs are designed specifically for the Audi 2.9 TFSI / 3.0 TFSI engines, compatible with the Audi S4 / S5 B9 and RS4 / RS5 B9 models. Available in a pack of 6, these coils are a seamless fit for replacing OEM coil packs, ensuring a more stable and powerful ign..