If I am using 350Z H-Techs? Or, If I am using RS*R 350Z Ti2000?

I have seen DSP-9 recommended for H-Techs and DSP-7 for lower drops.

Just need confirmation of which is preferred.

I know the only difference between the two is that the rear shocks of the DSP-7 have a shorter shaft length.

Thanks for your help.

 

You got that backwards. The DSP9 is for the 350z, DSP7 for the G35. So the DSP9 has the shorter rear shock.

I don't think it really matters too much what you use since they are supposedly valved the same.