I'm debating the 2 but despite loads of searching have been unable to find the primary difference between these two besides one is for the G and one for the Z. I'm going with Tein H-tech 350Z springs to pair up with them. Could someone enlighten me as to the differences in the 2 shocks and a compelling reason to chose one over the other.

Thanks

 

You need to read the sticky at the top of this forum.

https://g35driver.com/forums/brakes-suspension/65190-g35-350z-aftermarket-coilover-springs-shocks-spec-s-w-updates.html

Tokico D-spec twin tube 8 way double adjustable (bump and rebound) gas shocks 2 fitment's are sold DSP-7 for the G35 and DSP-9 for the 350Z.
The only difference between the DSP-7 and 9 is that the rear shocks on the DSP-9 350Z fitment feature's shocks that have shorter shaft's (1" IIRC) The 2 fitment's are both valved the same. These shocks can be set from softer then oem G35 shock to stiffer then the oem 350Z shock, your choice depending on how you set them.

 

Oops, I missed that part of it as I glanced through it. Thanks.

 

So what is the effect of this? Is the overall length of the shocks the same on the 7's vs 9's(could the 9's possibly cause the car to be lower than the 7's)?
Why get the 9's instead of the 7's, or vice versa?

 

Should someone getting something lower than G35 H-Techs get the DSP-9 for the Z? It seems that the shorter Z shaft would be better because the piston in the shock wouldn't be compressed so much at static rest.