My VW Golf 1.9tdi ARL mk4 was mapped on the orginal turbo for a little more bhp and torque (150bhp to 180bhp i believe)

I have now added a hyrbid turbo with a GT20 compressor wheel (turbo dynamics MDX 376 stage 2), EGR delete, clutch. Standard injectors (max out 230bhp)

The car hesistates a lot under acceleration and needs remapping

My question is in the title - would you edit from the original map the car was given or the tuners map that was put on it for the standard turbo?

Thanks

James