Yes you can take the baffling out. Might hurt then engine, might not. Probably not. I dont see how what you end up with would be much different in terms of flow resistance than a straight through glasspack slip on. Go for it. It will make your engine run leaner if you have carbs, if you have FI I guess that would correct for it somewhat but Im no pro. In case you didnt catch the humor of Larrys post, DO NOT just take it off and right around, thats bad.