hi guys managed to get myself a new core for the k03 on my vxr, was my own fault for not using a proper air filter just popped one i had in my shed for the sound for the time being and all its paint has fallen off and supposedly dried my bearings out in the turbo !!

question is i know you are supposed to replace some return feed pipe can someone point me in the right direction please cant remember if its water or oil or both (pretty sure its oil)

links would be appreciated as well :P