S.E.P Auto rs4 y pipe with integrated intake 85mm id

Only buy this if you are comfortable fabricating some hose for the pcv system as the oem one will not clip on the this one. i had to get a larger size hose and hose clamp it down on the intake side and pcv side. make sure you have larger silicone couplers that go from your intake to diverter valves and to your turbo inlets as well because this one is significantly larger than stock (b5 s4). Its a little expensive for me to have to be fabricating some of my own stuff but all in all a decent part.