D'sNuts

iTrader: (5)

Sportline or Pro-Kit?

Nexx

iTrader: (41)

both, go sport in the front and proline in the rear. ftmfw.

D'sNuts

iTrader: (5)

is that practical? like more than just gettin the same front and rears

Gsedan35

iTrader: (10)

In case specs matter in the buying process

Eibach 350Z progressive springs 1”/1”
Spring rates in LBS initial/final front 296/384 initial/final rear 316/421

Eibach 350Z sportline progressive springs 1.2"/1.2"
F: 239/400 R: 257/435

Peak stiffness isn't that different between the two, but the sportline setup has a really high rate spread between min and max. I won't touch progressive springs, but between the two I'd pick the Pro-kit.

D'sNuts

iTrader: (5)

great info thanks