One thing about the M4 that has been bugging me has been the ride height. Its just too high for my liking and feels a bit 'floaty'
However, I love the Adaptive Suspension which really does make a difference in ride quality in each setting- Comfort - Sport - Sport Plus
I didn't want to lose this functionality so a coilover kit was not on the agenda for me.
I researched long and hard to see what options were out there, it boiled down to the following options:
Litchfield - a very good drop and good reviews on comfort/ride quality, however very expensive for just springs
Eibach - never really been a fan of Eibach on any of my previous M's. I found H&R's a better ride and drop on my E92 M3
H&R Sport - The drop at the back is more than the front and IMO looks odd, otherwise would be the way to go
H&R Supersport - Looks great, but the front is low and I don't want to slow down for every bump to a crawl as I will be running the M Performance splitter
This process of elimination has led me to the KW H.A.S kit which allows for height adjustment and slips onto the OE dampers and therefore keeps full Adaptive Suspension capability.
The kit allows for a 5-25mm drop front and rear
A few members have been very helpful and have compared the H&R's with this kit and commented that the KW's ride a lot better, handle better and overall the best option currently for the F82 M4
They arrive this week so once fitted I will do a proper review.