Most of the parts on your list are unnecessary. The Swift springs are going to lower your ride height and stiffen the ride. You could retain your stock struts/shocks but they are only going to last another 20K-30K miles. Might as well replace them. Koni Yellows will run you around the same as a new set of OEM struts/shocks (at the prices you've listed). For that matter, you could just spend an extra $100 or so and pick up a set of Powertrix Sport Street coilovers. That way you can dial in your ride height exactly as you desire. I imagine that would appeal to you since you seem to be all kinds of anal about your Z.
Depending on how much you want to lower your ride height, you may need other supporting mods if you want your tires to last. You may need one or more of the following to remain close to alignment specs: wheel spacers, rear camber arms, rear toe bolts, front upper control arms.
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2017 370Z Nismo Tech 6MT PART OUT IN PROGRESS
Work | Motordyne | Powertrix | Swift | Michelin | Takeda | Hotchkis | RJM | Voodoo13 | SPL | SPC | Z1 Motorsports | ZSpeed | Morimoto | Craft Square
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