I am about to order the Hotchis TVS Stage 1 kit but have not been able to find a how to on switching out the coils. I found something on the sways and it looks pretty straight forward but what about the springs. Is there a step by step for this anywhere?

 

Try the DIY forum...

https://my350z.com/forum/brakes-and-suspension-diy-459/

There may not be one for Hotchkis coilovers specifically.

 

They are just springs not coilovers

follow the supplied instructions

 

Real easy job. Just take your time and follow directions.