this engine is a civic type r engine and i wanna know if it fit in my teg with no mods and would it be worth it . they're selling me a used engine for $3,700 with no ecu the engine has individual throttle bodies,jdm 4-1 header well in other words the engine looks like it is prepped so tell me how would i install this engine into my car if it doesn't have a ecu?????