Aren't you impatient for free help. What you're looking at is most likely a workable complete kit. But the questions become much greater at this point. First off what do you want the car to do? Is there a turbo map available for this kit that will show the rev bands it will work at in your car? You may pick up about 30-40 horsepower unless you overboost the hell out of your engine in which case it'll scream like a banshee right up until the point where your head gasket blows right out of the engine bay. It's not hard to make that stuff work, but you can significantly shorten the life of the engine and that where it gets REAL expensive. If you have the money to play, do it. If you don't, think twice. Could turn into a money pit faster than you can think. By the way, whats wrong with the stock M3? Very few cars can keep up with it, let alone beat it, even in stock form.