CAMBIARE Ignition Coil Packs For Audi R8 S5 Coil On Plug Performance Upgrade x4. The CAMBIARE Ignition Coil Packs are a performance upgrade kit designed for the Audi R8 and S5 models. This kit includes four coil packs, each providing improved ignition for enhanced power output. With reference OE/OEM numbers 06C 905 115 E, 06D 905 115 C, 06D 905 115 D, and 06D, these ignition coil packs are a must-have for car enthusiasts looking to upgrade their vehicle's ignition system for improved performance. This part fits 96 vehicles. Instead of leaving a note, kindly send us a direct ...