jdm integra type r lsd gsr

i found a jdm dc2 integra type r helical lsd for less than $300 is that a good deal or are they usually cheaper also will it fit into my 95 integra gsr its not the whole tranny its to small i think its just the differential but i want lsd so i figured i would ask the experts thanks all if you need any other info just ask i will see what i can find

i was wondering if it will fit or what lsd would be the best kaaz phantom or the type r and or would i need a different jdm lsd like ek9 and dc2 or what thanks and will this make a difference in racing