I would throw the 0.216 nozzles in and ho the "hammer mod" also you will need to reduce the injected quantity at idle with VCDS(vag-com). The turbochargers are different between the 90 and 110Bhp, the later one is VNT operated and the 90 Bhp being a vastegated Borg Warner(KKK) blower. You will need to upgrade more to get your car fitted with a PD turbo. For starters, the ECU needs replacing, allong with the engine loom, manifold, injectors and few boost pipes and solenoid valves. Its much easier to sell yours and buy a 110Bhp and you will have a better turbo and +20 Bhp as well. Then its quite easy to tune that further. Throw bigger nozzles, a decent chip job(remaps do not work on these early ECU so chips needs soldering to the ECU with the new map written on them) and a PD 130 turbo(you will need a boost pipe to mate it to the inlet as well) and you are looking at 160Wheel horse power wich feels better than a PD at 180Bhp...while still getting 50Mpg ! Kerma TDI also does a cast/tubular manifold wich allows fitting of a GTV 2050(aka VNT 20) turbocharger from the later V6 Tdi engine wich can flow 200Bhp reliably all day long(they max at 250Bhp). Then you are talking big power with masive torque as the VNT 20 spools from 1500rpms. You will need a single mass flywheel and SACHS heavy duty racing clutch to put all that power to the floor. Or you can sell and buy a PD 130 and have a fresh start with just a remap they get about 160-180 Bhp but they eat clutches/DMF on a regular bassis... Or you can buy a quattro V6 tdi, throw a set of Bosio race 683 nozzles, fit a hybrid turbo and have a decent remap for 260+Bhp and over 600Nm of torque! You wont have trouble putting the power to the floor, have a really strong Getrag 6 speed gearbox, heavy duty clutch as standard( up to 450Nm with no complains) and a smooth engine wich feels like a petrol(in gear) with 140Mph+ top speed and high 40Mpg fuel consumption...