For the front lip I'd give it an 8 out of 10 on fitment only because you do have to drill and you do have to trim some parts. I filed some edges down to fit perfect because I am anal about that stuff. To be fair even the OEM M lips are not a 10. Finish of RW is a 10 and quality is a 10. So many of the ebay parts are thin molded plastic with a layer of CF over it and they are very flimsy. The RW are solid CF. The rear diffuser and rear spoiler are a 10 across the board from RW. Here are some pics of the lip. Just installed it Monday night.
Well every time I go to upload a pic it shuts the browser down so I will try later.