R32GT-Runner

Hey everyone just brought a r32 gtr new to the fourm thing to and its dead stock nothing at all done to it ive been told its one of the cleanest in Aus was shocked when i found it so stock still has restrictors in it. Is it worth keeping it stock for future sale? if not what are the best modifications to do?

Coilovers to suit gtr not to sure if there diffrent to the gtst. Dont really want to pay thousands not to worried what brand but will do research on the brand offered Just want good strong and reliable coilovers