Normally your crankcase (and associated impurities) would be ventilated back through your engine's intake system. Great for smog laws, not so great for your engine. You run the risk of coating your intake runners, injectors and internals with the residual oil mist discharged from your crankcase. Now theres a better way to keep you engines intake system free from the crankcase oil contaminants generated by engine blow-by-with a SAAS baffled Oil Catch Can. Designed for the Australian off-road, these universal fit SAAS Billet Oil Catch Cans are your engine's best friend.