I have an s13 but the ka in mine was from an s14 so I have an s14 PS reservoir. My reservoir to pump hose needs to be replaced, but unlike for s13s, there don't seem to be any cheap $20 ebay options. I tried reading on other forums but couldn't find a clear answer on hoses that would bend / not grow weak due to the fluid. Id rather not buy a reservoir w/ the hose attached for $50, if anyone has any cheaper solutions please let me know! I believe the size is 5/8" for the reservoir to pump hose but I still don't know which hoses can handle it.