I recently sold my Mazdaspeed6 to purchase a dedicated track car, and through forum and FB scrounging I quickly found out that my motor swapped rx8 would need a catch can. I had more or less bought everything Damond made for my speed, so back to Damond I went. I did some measurements, and bought just a basic can, and it works great. It looks like it belongs, and its keeping my valves clean. It came with everything I needed, extra hardware, clamps, and more than enough hoses. Also, whoever packs these boxes is a wizard. I dont know how it all fit in that tiny box, I could not re pack it to save my life. Anyways, if you have a DI car with an intact PCV system, you need one of these, and you cant go wrong with anything Damond. It works as it should, and it supports a local small business that doesn't outsource overseas.