lag turbo problem cdti

Hi, new to the forum, desperate for some advice.. i have got 2005 1.9 CDTI 78k on clock, Remapped by regal, dynod at 198bhp 335 lb torque, egr has been blanked.. intake manifold replaced.. cambelt & water pump alternator & battery clutch kit & flywheel! (all in last 12 months unfortunatly)...