Excellent, thank you. Personal preference is that I can't stand the look of the floating calipers. I don't know why, but the all-piston calipers just look that much better. Not $4000 better, but I would definitely do $1750. I put Willwood's on my '05 SRT and thought the look was a huge improvement, especially considering the open spoke rims I had. I intend to put winter tires on the MKZ stock rims this fall and get new rims/summer tires next spring.