What is a good airfilter for my Hyper 7 OBS with Hyper 21 motor. I want something secureable like the stock one but with better performance if it is possible. Maybe something with dual stage filtration. Or just a link to where I can buy more pre-oiled filter elements for the stock replacements..Thanks

I have the RB Air Filter, it has a screw that you can attach a mount to, it is also a dual stage filter!!!

Where did u get that RB filter from? Can u send me a link? Thanks

I got mine from Ace Hardware Hobbies
http://acehardwarehobbies.com/2.2/ca...oducts_id=2469

motor saver 3 stage filter...I've got one for my hyper 7, works great

Okay now where did u get that one from?

my LHS, i'm sure you can probably find it on tower hobbies or something like that though

Yes you can, heres the link: http://www2.towerhobbies.com/cgi-bin...&I=LXDBD5&P=ML