I currently have a set of Eibach Sportline Spring on my car. While it handles long curves beautifully and takes off a large amount of body roll, I'm beginning to think that the springs spec's do not help to induce some oversteer. The springs are rated at 360 lbs front and progressively at the rear, however the loading is mostly biased in the front. I'm not asking for crazy oversteer, just a little more rotation in my car on turns. I have a suspension techinque sway bar, and the car still has some understeer in it. I want a more nuetral to slight oversteer response.

I am wondering if I can swap springs from another maker who has specs more closely to what I desire, such as the rear springs off the Nuespeed Race or H&R Race.

I would inquire about this by emailing the respective companies and asking them, but most likely to protect the warranty and prevent any legal actions, they will say NO I can't do it.

But from an engineering point of view, is there any harm in me swapping springs? Isn't it just like contacting Ground Control and asking for custom spring rates?

I would want to choose this option first for its relatively low cost, but if what I want to do is not reasonable, I will take the custom GC springs route.

Any input is appreciated, thankyou.