The F30 has a way of being a bit of a let down out of the box in regards to steering(heft and feedback) and handling(body roll).
Here, we have a great stiff unibody @ 30% more rigidity over it's predecessor but it seems as if controls and feedback have a layer of cream making it hard to feel the benefit.
It started proper sticky non RFT Michelin PSS' mounted on 20% lighter wheels. Combined with the H&R springs, this should almost be a trifecta or complete option package.
To be honest, I did this mainly as an aesthetic mod, but I would say it's 70/30 as the 30 is actual performance benefit.
Steering:
Heft has definitely increased. I have not driven an E90 in a couple of months, but I feel like it's closer without it being annoyingly heavy.
Feedback is a notch better as well. It is not the return of hydraulic feedback, I feel that is impossible. But I feel an peelback in layers now, I get a bit more communication as to the road surface, more of what I love about the helm of my E36.
Handling:
More information is being transmitted and with a feel of less weight shift/weight transfer. This is felt in braking and even lower speed corners. There is definitely less body roll, certainly not an elimination, but I do not expect that in a 3 series.
Summary:
I feel like this is how the car would have felt if it was an E90+F30 offspring. We get the increased F30 dimensions and stiffness and only a smidge of softening. This can be taken further with a rear swaybar to truly tackle the body roll and struts/shocks to shift it even more from a sedan and more towards SPORTS sedan. I will wait for a rear bar and see if it is worth stopping there.
Here is a pic of the car FILTHY. The springs will settle and lower it a bit more in the front.
