For those already running Koni Sport Yellows with OEM, Eibach, H&R or other springs, but is looking for a bit more handling performance or simply looking for the option to adjust ride height, HP Autosport, Inc. has what you need!
This kit converts your Koni Sport Yellows to a true coilover system with linear rate high quality Swift springs. A fully assembled kit will look something like this:
http://www.e90post.com/forums/showpo...96&postcount=1
The kit consists of:
Front threaded sleeves
Spanner wrenches
Front Swift springs(various rates are available)
Front spring upper hats(camber plates are optional)
Rear threaded height adjusters
Rear Swift springs(various rates are available)
Swift thrust sheets/bearings
Below is a photo of what the front Koni Sport Yellow strut will look like after the conversion.
This item is NLA.
https://hpautosport.com/product/bmw-...onversion-kit/