These big guys will work with our race inlet manifold along with other manifolds. They also works with our fuel rail kit, and lower bushing kit as well. DeatschWerks Bosch EV14 Universal fuel injectors represent Bosch's most advanced multi-port fuel injector technology! These injectors deliver an excellent spray pattern and atomization for optimized idle and tuning. They are provided with tuning data and a custom flow report for an easier tuning process. They have 10 different flow rates; so you can choose the combination of features that best meets your needs. EV14 injectors are offered in three different lengths, two different O-ring diameters, and 10 different flow rates; so you can choose the combination of features that best meets your needs. DeatschWerks Bosch EV14 Universal fuel injectors feature low inertia, ball and seat pintle design, and high quality copper coils to deliver fast and precise opening times.