I've heard nothing but good things about SARD, there injectors and regulators are top notch.
044 isn't a 'direct fit' into a GTR so to speak, but can be installed without much trouble.
Pm the user 'phat32' he helped me with getting bosch pumps
Sending my import approval off in 5 days,
I BOUGHT THIS GTR IN DECEMBER 2003, oh god it has been a long wait :'(
I can't wait till I see it on the docks
Ummm, I dunno but I have ridden in my mates Nissan Cima Cedric (VG30DET) that had airbags from factory, it felt pretty nice, no where near as hard as some springs, the thing is the compressors would take AGES to adjust them.