Can't say I've "held" a K&N, but I held a D3330 I think it was, which cross-references to a XG3614 and WOW.....that beast is HEAVY....lol!
Not to mention, I
BUT, be careful....I've found some of the filters "swapped out" at my local WM......"people" putting FRAMs into the D+ box, and walking out with a D+ for the price of a fram......
Karma's a [censored] though.