Yea that pdf says a whole lot but my question is this. The engine is already set up to run w/ it kicking back all the fumes n oil particles/ water vapor into the intake from the factory. I think anything that let's the oil & water drop & allows the gases to flow cleaner is better than the sludge setup from the factory. I can't argue the fact that w/ out a doubt having anything flow free like mesh & enter the intake would be a big issue especially where your warranty is concerned. That all said I just took delivery of my billettech catch can & am anxiously awaiting a day off to throw it in. So use it well & pray you only catch vapors & not mesh!