You can buy a bunch of parts and cobble one together, but the rub comes where you need to mount the IAT/MAF sensor, unless you retain the 2 OEM plastic pieces and attach the tubing to that.
Some members, like maxcichon were very successful with that approach, but then his doesn't allow for that engine cover : https://cimg4.ibsrv.net/gimg/www.cro...a936b18f36.jpg