Hey I found thread of people doing this to R53. I would like to do it as it looks a little cooler than the standard R53 aero kit. I was just wondering is there any more information out there about how to trim the area on the door sill that needs trimming and how to fasten it as I have read that the tabs are in different places exept for the sill.... I understand the plastic trim needs to be sanded to a little thiner but that wouldn't be to hard. I am just wondering about fastening them on. If you have any idea that would be awesome. Thanks.