I proactively installed digital flashers in my 260z without any issues, the pair of them cost about 10 bucks at Orielly auto. As I have mentioned before, light is more complicated that people assume and the biggest mistakes are using thermal flashers or putting a white LED behind a red or yellow colored lens. You might get flagged for a ticket if for example you install a white LED behind your brake lens, which would generate white, not red light when braking. If you install electronic flasher units and use colored LED's that match the lens they are behind its a pretty simple procedure to convert to LED.

Somebody should make a good writeup on this topic and send it in to ZCCM.