car has recently started hesitating slightly, and bogging. I have changed the fuel filter, and the radiator lately. ( problem started slightly before these replacements) IF any of you guys have experienced the same problems, what was your remedy for this problem

Mods, jdm type r motor, mugen header + exhaust....

Im thinkin its possibly the injectors, maybe fuel pump ???

 

injectors=possibly

fuel pump would most likely not cause a hesitation, it would usually fail and render the car dead if there was a problem w/ it

 

check for a clogged fuel pump, or for crap in the fuel tank.

 

check spark plugs and wires....... especialy since you said it started before you replaced the other things..