Kamukasha

I'm installing a turbo on my 2008 lancer... And I'm wandering about the crankcase intake hose thing... The one that connects the valve cover to the intake right before the throttle body... Should I just put a filter on it or run it to my piping b4 the throttle body like it was??

Em4n89

I'm not sure about Mitsubishi specific, but I would recommend putting a filter on it or connecting it before the turbo. The point of this breather valve is to allow excess pressure to vent out of the crank case. If you connect it after the turbo it will cause excessive pressure buildup inside the crank case which will blow oil seals all over the place. The reason it connects to the intake is to allow the oil that may be forced out of it under high loads is to allow the engine to burn it and have it exit out the exhaust pipe, so you are not dumping oil on the road or all over your car.