spring rate on IE stage III

[screamingbmwe30]

i have eibach sports or some crap now will the IE stage III but a noticable upgrade. also what are the spring rates?

[Mystikal]

Eibach Pro Kit: 148F / 275-343R

IE Stage III's are similar to H&R Race, which are 315F / 570R. Difference is the front coils on IE's get more progressively firm near the end of strut travel, making life easier on the bumpstops.

Basically you'd be moving to a spring with more than twice the stiffness.

[hamann318is]

I've read that the IE III are around 375/400 F / 550/650 R.

[screamingbmwe30]

GUESS ITS TIME TO CHANGE!

[Digitalwave]

I checked out an Eibach Pro-Kit car the other day, its laughable how soft those springs are. I thought they were stock.

[Mystikal]

I checked out an Eibach Pro-Kit car the other day, its laughable how soft those springs are. I thought they were stock.

Same here. He had stock shocks too, it rode softer than most Buicks I've been in.