Generally speaking it will not. Stiffer shocks normally have to do with the ride height. it has to do with the internal valving. The only way a shock will increase the height of the car is if they have a much higher gas pressures, which increase the internal spring rate of shocks. Even then the increase in shock pressure only raises the spring rate a hair, so the height changes will not be too affected. Now I'm not sure but I think the stock shocks as well as the nismo's are twin tube shocks. So they are low pressure units.

I think the fronts will be a tad higher in the fronts than base shocks when you install the Swifts. I say go for it...

Hey guys, just posted up a little sale we have going right now for these springs. I never saw anyone else selling them on here and I'm a fan of Swift so I figured I'd post something up. Hope this helps save you guys some money.

http://www.the370z.com/suspension-br...tml#post860987

Mike

Here you go buddy! They have them in stock:

Swift Spec-R Springs 370Z 08+

hey guys, Swift is getting our next shipment in next week I'm being told. We have some available still so we welcome your orders for those that want them.

PS - we have a price match policy on everything we sell as well, so if anyone else is doing deals just let us know and we'll get you that price on these or anything else.

Hey guys we just became a vendor on the forum. Anyone interested in the swift springs please let me know. They're currently out of stock from swift until March, but we'll be happy to accept pre-orders... they sell out quick so don't wait too long!!!

Swift Spec-R