g'day,mate you can send your DCC250 for speed upgrade to 450 and for dcc320 meter reset to zero counter.you be saving on transportation.Southern malaysia to West port is RM300.00 and Rm300 return.if you come by own transportation,from Tuas,Singapore is about 360km.A 4.5 hour journey at a constant averaging 90 km/h.Highway toll charges about RM50.00 per trip.No a high price in Malaysia.Buy my parts in singapore.Cheers