Thing I would do instead of "boxing" the K&N filter...
Just get a huge 9" Spectre...and love it.
he has no room just like my setup with the genv turndown. I have to run a small filter too or it will hit the pcm and that flat part behind the headlight
that belt wrap is nice as fuk
16' wrx sti- stock
06 Spice Red GTO- m6/exhaust/tune/suspension/377whp-383tq-sold
99 silvermist gp gt-g5/xp/IC/3.0mps-parted&sold