You need to have the DPF Coding removed on the ECU (i believe most tuners just set the minmum DPF Values to a level that it will never achieve)
You dont need to have a remap done though
Sh.ark offer a Stage 0 DPF Removal which is simply DPF Hardware Removal and DPF Software Removal, it offers very minimal power gains if any
I had the Stage0 map on my SPS (Along with Stage2 and Stage2+), i ran the stage0 for a few days and it felt better than OEM and was still smoke free
You dont need to have a remap done though
Sh.ark offer a Stage 0 DPF Removal which is simply DPF Hardware Removal and DPF Software Removal, it offers very minimal power gains if any
I had the Stage0 map on my SPS (Along with Stage2 and Stage2+), i ran the stage0 for a few days and it felt better than OEM and was still smoke free