The catch can, doesn't this affect metered air or is that only for PCV? There's a detailed thread on here about Positive Crankcase Ventilation (which I still want to do, despite Stillen saying it isn't necessary).
Not entirely sure dom
But it's been on the dyno sInce tho
I did it for the pcv just to add after nearly 2 thousand mile here in Europe there's nothing in it