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So i am restoring my Legacy SS and i am in the process of getting new hoses and vacuum lines, here is my question, i am looking to buy new coolant/vacuum hoses i have the diameters for all of the vacuum hoses so that isn't a worry but for the other lines such as the coolant lines and the hoses to the pcv valve, the f pipe, and to the heads and everything (if that makes sense). does anybody have the diameters for each of those lines? and if so could i use silicone hoses like these: http://www.boostcontroller.com/index.php?category=8
thanks guys, let me know. i just don't want to buy hoses from the dealer if that makes sense. if not where could i get these hoses because i have quite a few that are cracked and just OLD. ha ha

I would recommend using this for emissions (PCV) hose. You can order what you need from Rockauto for a pretty good price. As for sizing, take your old hoses to a local autoparts store and match up the closest size. The hoses on the car will be in metric sizes. The US hose sizes are pretty close, or the hose stretches.

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