I really don't know what that is, turbo isn't even install on my car yet, i don't know if the last owner have that hose running from there, all i know is that its a drag 3 kit, complete. I check the web and search around, seems likes it the oil seal and that i have to get a rebuilt. Is there any other sign that i can tell if its the seal? Also recommend any place that does a good rebuild? (websites) And, thanks alot for replying and helping me out