Haha sorry about that, its an air-oil filter which is installed with pipes which go to the throttle body and to the valve covers. It basically stops the oil build up in the engine, thats as much knowlege i have but if you go here NeedsWings Crossfire Oil Catch Can Kit it explains it a lot better :P. i mean its only for people what to install aftermarket parts of course . I just thought it would be a good thing to get to maintain my engine from oil deposits. Hope this helps any confusion :P.