I've just had my car tuned and ever since then the car has started to produce far too much oil from the breather system. I have a no name breather system plumbed in with all correct connections.

Before tuning there was no oil being dropped from there at all so it vented to atmosphere. Today i just fitted a small pint milk carton too see how much was collected. Went for a little drive into town to do some odds and sods gave it a little stick on the way home and it had half filled with oil.

Its only running 165bhp chip filter exhaust uprated i/c. At a loss as to what might be causing this.