it is however, a valid point...i mean the cost of maintenance
a skyline turbo will cost a lot more to maintain compared to a normal 2003 car in terms of servicing, insurance etc...
something to bear in mind if ure keeping the car for awhile
electrical - you get memory settings and warning
mechanical - just shows boost
any brand would do, depends on ure taste, Defi look awesome though an Autometer would work just fine...how much do you want to spend?