can anyone here tell me the diameters to all the hoses that are in the engine bay
(ex:vacuum line, resevior line,etc.) any input would be greatful thanks

 

Take them off yourself and use a ruler lazyass

 

lol. What my friendly comrade there is saying is: nobody has really posted the oem specs of the hoses/lines for the tC here yet. Are you replacing them all with aftermarket ones?
The only thing left to do is measure them yourself. Pretty easy if you do one line at a time so you don't get confused. The Rad hoses are pretty straightforward since you can just buy a direct replacement kit; but for the others, you may have to measure.
I was also thinking of replacing mine w/ Samco hoses in the future. I think it looks so sweet!

 

hey Kikcaffine for info diameters mean the length of the circle from wall to wall in the tube or hoses if you will which to get that you will need a micrometer now if i asked for the length of the hoses then yes a ruler will work but that is not the question i asked now you are a dick i understand that but if you have no answer to the question that i asked before than keep you sorry ___ comments to yourself