the reason I made it was because I have never had any probs with the standard cast iron manifolds and wanted to have that reliability with a bigger turbo. the reason it waz a pain and took 3 hours to make is because of the massively awkward angle the ct9 sits at compared to td04 were-as the td04 needs to be level but still fit well with the standard td04 decat and lines etc and thats how it ended up. was made by a dude that used to work for ford years ago who fabricated tuning parts for ford race team.