I have been doing some reading over on the Zine and the new thing is to run MarkIV TFSI coil pack (06H 905 115).
They say the car runs smoother and better midrange power and in some cases 1mpg better fuel using bkr7e at .040. sparkplugs on a stage 1 mapped car (Chip).
You can use some of the other coil packs
RED MKV FSI Coil Packs - 06E 905 115
BLACK MKV FSI Coil Packs - 07K 905 715 F
BLACK MKV TSI Coil Packs - 06F 905 115 F
If you use the other coil packs you will need a spacer from INA - 1.8T to 2.0T Coil Pack Adapters
The MarkIV seem to fit without the adapter from reports so I may try them first.