Inexpensive! The kit contains everything you need: - Brake oil - Sensors (2) driver's side, passenger's side - New clips (4) And of course everything in the photo. rotors and brake pads. When I called local parts stores the best price I could find for rotors and brakes was around 250. This did NOT include sensors (20 from the parts store or 40 from BMW). 250 was the lowest price - cheapest route I could go. They called me 150 for a rotor if they had that style! I would pay over $300 for the lowest quality products they stocked, or over $600 for the same setup. Only in parts. I saved myself. I bought a can of caliber paint for less than ten dollars (using a wire brush and cleaning the surfaces very well before application). I really like the result of the project. See photos** In my opinion it looks much better even if you hide behind the wheels. Good luck if you decide to go down this route with the system!