[Negreac]

It really depends what kind of car you are building. I persoanlly am going with all Nismo bushings, for two reasons. The first being I'm trying to build a streetable car that I can take girls in and Daily drive if I ever need to and poly bushings are horrible for ride quality. They will increase panel rattle/squeek, decrease ride quality/comfort, increase road noise, and be harder on your frame/suspension components. Nismo's units are just a harder rubber, I think like 30% harder than stock, which will give a tighter feel but leave the car bearable on rough roads. The other reason is Nismo's bushings are waranteed by Nissan, I dont have to worry about some odd fitment problem or them somehow causing damage or excessive wear to any other components of my driveline/frame. If I was building a track car it would be a different story, which is why I say it's up to you to decide how much comfort you are willing to give up for performance.