What engine upgrade is best for 2.0D

[bossman]

Hi, I have just purchased a 2.0 D SE V50 (MY2006) and I would like to know what engine/ECU upgrade is best for this engine, or any other items I can change to improve power and torque. I have seen TUNIT and Superchips, but they all seem to involve additional parts. Is there anything I can use via the diagnostic port in the car?

[traguar]

Hi,
try looking at the PCC system from BSR, it plugs into the dianostic port and will retune the car from there. I've done it with my car and think it's great.
Luc.