i was looking under the hood of my boys 99 4dr gsr and he has a cai and it was a thick pipe. i couldnt wrap my hand around it but my other boys cai on his 95 2dr civic ex gsr is smaller and i can grip that. but i am getting ready to put my gsr in to my car and i was thinking about a cold air intake. would i use a cai for a 92-95 civic or would i be able to use one for a gsr? because if i can get a bigger pipe i want one.