Fuel injectors are responsible for delivering atomized fuel to the combustion chambers. Due to the nature of their operation, injectors are subject to extreme heat and pressures. If you have a failed injector Turner Motorsport has you covered with Genuine BMW and high performance aftermarket options.
If you are pushing the limits of your naturally aspirated build or stepping into a moderate forced induction setup, the DeatschWerks 17MX-00-0600-8 fuel injector kit provides the reliability you need.