X4 Billet CNC Plates and bolts. X4 x 06E905115F R8 Coilpacks. X4 x 06E905115F R8 Coilpacks. This comprehensive kit comes with everything needed to convert and upgrade a VAG 20v 1.8T ignition system to the more reliable 2.0T TSI ignition platform and comes complete with a set of R8 (06E905115F) red top coilpacks.