To my knowledge yes members use them and also the more expensive ones too. No I don't believe they yellow. We got a kit and I am very handy. It is beyond an art to get the hang of putting your own on. Ours is still in the tube with one piece cut up and still we couldn't get it to all fit where it was to. The on line Ebay seller I bought from has been professional to deal with. If you want one on the car pay to get it done IMHO