Apologize for asking - if it helps I did do a quick search.

2012 SV premium is my daily and sees a ton of miles for work. 370Z is in the garage for smiles.

On my 2000 the Stillen made a night and day difference.

Will be replacing my worn suspension with OEM stuff at a buddies shop next weekend.

Is a RSB still a considerable upgrade on this gen, and are there other brands to consider?

 

Yes and there were more options. Im not sure other option than stillen is available right now.