These are 1500cc Deatschwerks fuel injectors for the Evo/DSM. These are a set of 4 100% drop-in fitment injectors for the 4G63. These injectors are based on the legendary Bosch EV14 injectors, and have been developed with the same commitment to quality.
These have high impedance coils that are compatible with OEM injector drivers. These are also ethanol and methanol compatible, and each set is flow matched within 1-2%. So if you're planning on running a big turbo with big boost, these 1500's will get you the fuel delivery you need.