http://images.craigslist.org/00b0b_dMDdZmihvQs_600x450.jpg

http://www.nydailynews.com/news/national/paul-walker-dies-crash-report-article-1.1533786

Since we don't have a weld or fabrication section to post in... I'm trying to build my own manifold and need to make the merge collector for a T4 non divided.   I have made a merge collector for a T3 flange just as a starting point, but I'm struggling with the cut angles of the T4 as it is larger and rectangle shaped.   I did alot of searching and everything I'm finding is for the 4-1 T3 or 4-1 T4 divided. Nothing on the non divided.   any help would be great.

Roughly about how much would it cost to have a flex pipe and wideband bung welded on at an exhaust shop? I know a lot of people here have had both done so averaging what would it cost?