445cc (50 lbs hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for 4.8 5.3 6.0 Truck Motors ('99 '06) (High Z) (is304 0445h) Wiring Adapters:PGTUSC8 The boost pipe also has The boost pipe also has 2 x 1 8th" water meth nitrous bosses incorporated into the design for tuners to keep inlet air temperatures on the safer side while pushing the B58 engine to its limits and aiding the option for a maximum power output Combines the ultimate in looks and durability in the engine compartment Fuel Injector Clinic's high performance fuel injectors are flow tested and rated at 43 5psi (3Bar) at 90 degrees F fuel temperature using CF 16B calibration fluid