[Koup SXR]

They first need to provide proof that the lowering springs caused your warranty claim.
I'm waiting for my set from Northern Motorsports as I know they have the lowering springs that were meant for the Kia R package. They were specifically designed for the Koup so I'm not at all concerned to install them.

18's look best when the fender gap is reduced, so if I had a set of Eibach's on hand, they'd be on the car by now.

 

[Koup SXR]

I have driven ******'s Koup and I absolutely loved it! Those Ultra racing suspension components are incredible. It was ...literally... like driving a gokart. The ride quality was excellent.