DV - yes definitely recommended. Had mine installed today and the quality is second to none.
HPFP - Optional on Stage 2, but I know from Revo on a normal GTI that you can't run as much boost if you don't upgrade the fuel pump, as the engine cuts the fuel because the standard pump cannot cope with the increased stress. (This applies to Stage 2 Revo software, and may not apply to the ED30, or the APR Software. Research this on your own to confirm).
Extensive option though
