i have a 92 civic si hatch that desperately needs a new motor. i want to be unique so i found a motor from an SiR civic that im going to drop in. i know the motor will drop in but i have an issue. i can get the longblock without tranny, ecu and all the fixin's for around a grand. i want to know if i have to change the ecu or can i get by with the stock ecu. i can probably get the motor and ecu for about 1300 and i need to know if i need to go ahead and spend the extra cash. any help would be awesome.