2000siturboR

i got 2000 civic si greddy turbo kit. 7psi. and i noticed car wasnt running right idleing low at like 200-300 and notice alot slower and cell was on when i got on it. so i did a cel code scan came up at all 4 cylinders misfiring so took plugs out check them they were pretty shot replaced them and new wires. same this happens. so now im thinking its the coil assepmbly or the ignition control module. anybody have any input i would appreciate it. cause i dont want to spend money or **** i dont need.