I did mine and it wasn't too bad. There are quite a few videos on youtube showing how to do it, plus companies like cobb and perrin have instructions on their websites. the most annoying part for me was cutting the heat shield because I only had really crappy tin snips. i would give it a try yourself. A second set of hands can be helpful when you are putting it in, one person under the car and the other holding it at the turbo.