I'm looking at a custom remap for the old girl. BUT. My turbo whistles. Although I recently stripped and cleaned the vanes it is still has no power/torque below 2k rpm, but is like a scalded after 2k rpm.
I've got a gutted pre-cat to go on and I will be gutting my main cats too before the remap.
Would changing the turbo for another alter the way it runs after a remap? It would be a similar turbo, just a later part number. Mine is 'F' and would be looking at fitting an 'S'
Does anyone know of a good trusted mapper in Yorkshire? preferably one who has a rolling road for before/after. My budget is £300 max as I need to reserve some cash for a replacement turbo.