intake rattles like a mother

So I popped a new filter on my intake and now it rattles like no other. its sounds bad in the gabing and I dont like it. the intake came we 2 peices of metal 1)about 6 inch long with 2 holes in one end and 1 in the other and 2)an L shaped peice considerably smaller than the other with 1 hole in 1 end I think I need to mount these somewhere to hold my intake down also whats the little plastic cap for that fits over the big nipple? thanks alot