So I took a leap and tried something. I wasn't happy with the Weapon-R and DC Sport Header prices so I did a little research and found the 10th gen corolla/scion xd/toyota matrix headers should fit the 11th gen corolla. So I bought an ebay header and for $95 and it fits! No specific seller just the search term in the link below.
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313.TR0.TRC0.A0.H0.X2010+corolla+header.TRS1&_nkw=2010+corolla+header&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=2012+corolla+header
Here's the thread I got my info from to replace the header, great write up:
http://www.toyotanation.com/forum/377-corolla-11th-gen-2014-scion-im-2016/1400897-how-install-headers-corolla-2zr-fe-engine-aircmry.html
I had to take my bumper off to get on my rhino ramps so I started there first:
Then you have to remove the wipers and that whole assembly:
Then comes the fun part:
Since the header is physically bigger the way the pipes are, its a tight fit getting it into the space but it works, just have to wiggle it around and play with it to get it in past the motor/windshield.
Note, bolts aren't tightened yet in this photo.
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313.TR0.TRC0.A0.H0.X2010+corolla+header.TRS1&_nkw=2010+corolla+header&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=2012+corolla+header
Here's the thread I got my info from to replace the header, great write up:
http://www.toyotanation.com/forum/377-corolla-11th-gen-2014-scion-im-2016/1400897-how-install-headers-corolla-2zr-fe-engine-aircmry.html
I had to take my bumper off to get on my rhino ramps so I started there first:

Then you have to remove the wipers and that whole assembly:


Then comes the fun part:



Since the header is physically bigger the way the pipes are, its a tight fit getting it into the space but it works, just have to wiggle it around and play with it to get it in past the motor/windshield.

Note, bolts aren't tightened yet in this photo.



