Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
I never put in a full tank - most I'll run is a half tank when you go from an empty tank to a full tank - it feels a wee bit more planted but a wee bit more sluggish too in my experience.
I would lower it first...?
If not, Magnex is generally seen (heard?) as the quietest off-the-shelf item you can get. If you go custom, you can have it as loud or as quiet as you want.