Reliable performance and easy installation. Give you a pleasant experience. 4X Side 555Cc Fuel Injectors Replacement for Nissan for silvia S13 14 15 SR20DET 16600-RR543 . It has the characteristics of high plasticity, toughness index and high compressive strength, and is suitable for the working environment of the for engine. Resistance for long-term stable for operation under high-pressure working conditions. Finely machined for nozzle structure achieves uniform fuel atomization, facilitating full fuel combustion inside the for engine cylinder., Manufacturer: Zynther