Below is an image of my mopeds air intake tube. I don't have the money nor the time to reinstall what used to be on there and I would much rather put a high performance air filter on it. However the last time I tried doing so, the moped sputtered and didn't seem to go anywhere past 10 to 15 mph. I think it was getting too much air but I'm not sure so my question is what kind of air filter can I put over this area so that I won't have to mess with my carb.