Way, way wrong. That's 500 front, 550 rear give or take a bit.

yeah 9kg is 19.84160359664 lbs, I think my 79 Impala had those spring rates. I think 100%juicifer can read german , pm him for help.

9kg/mm and 9.5kg/mm or 500lb/in and 550lb/in sounds about right for a performance coilover, just backwards. I would expect the fronts to be stiffer than the rears.

Variant 1s are not truly "performance" coilovers though, they're just meant as a means for proper ride height reduction. That's stiffer than the Variant 3s IIRC. I would say that 5k/4k is more appropriate for that setup, though I agree that very few designers would put stiffer rear springs in.

ESP should be more interesting now. You're coming to the GSR autox, yes?

Nick said he thought he read somewhere on the all knowing interweb about 400lbs one end then i dunno the other so im probably way wrong. Either way they are sick coils for the price, very good quality, cool colors, and relatively easy to install/adjust, even though it tookk us like 8 tries to get it even all the way around. i want to see how it settles and how the ride height ends up.

kw's North american website has a spring rate guide somewhere.

http://www.kw-suspension.com/en/30_P...nder/index.php

Most definitely! I can't miss out on the GSR event and I have to give these coils a proper break in. Its the 27th and 28th right?

Yup! :)