So I bought a g35 coupe 2007 a month ago. I find that the ride comfortable is pretty bad. It had lowering spring on but I switched back to stock and I can feel everything on the rode and it's so harsh on pot holes and bumps. Does coil overs make for a more comfortable ride?

 

Depends on settings and coilovers. But yes,they can be more comfortable.

 

if you think the stock set up is too harsh you need to get a different car. coilovers are going to make it worse. coilovers usually have stiff shocks and springs on them.