Precision. That's what matters most when it comes to fuel delivery. With TSP's high-flow Velocity fuel injectors, you can expect reliable delivery of the precise amount of fuel every time. TSP Velocity fuel injectors are made in the USA, assembled with top-quality parts and trusted techniques. The 81050 injector is designed to fit TSP's LS1/LS2/LS6 and Coyote 5.0L Velocity intakes and rails.