Originally Posted by StillenZ84

Yeah taking the filter off obviously allows more dust and debris into the motor and shouldn't be done if you daily drive your Z, unless you like to party I guess. I for example will have a "race tune" as one map tuned with the filter off and will also have a map for daily driving where its tuned with the filter on. Just be careful trying something that the stock block might not be able to handle. I figured that out a few months back. Should get me car back next weekend and for sure shooting for huge numbers.