I put together a very robust catch can kit using the very best materials (all in black) for my 2010 Audi TTS because a lot of modders were doing saying it would help keep the engine internals cleaner and help the engine last longer. The install was extremely easy and it was doing it's job marvelously until the weather got very cold and the catch can got plugged up with ice. (I drive my car year round in Atlantic Canada.) Lesson learned...Do not install a catch can if you live in a climate with freezing temperatures.