Thanks for your comment, it took me 1+ year to learn
fabrication
CAD designing for Flange
and TIG welding
All by myself in my garage by watching youtube and asking questions on other forums for welding+fabrication+CAD designing
This was 3 rd try, first two tries, nothing fitted and i had to scrap headers
Yes I bought elbows separately and TIG welded them, I didnt bend tube, I will try if the tube bender is cheap to buy, i can try making that type as well.
I inquired about Richard Headers no reply,
I also inquired about vandemon headers but they are not 2 inch at exhaust port to 2.5in on collector pipe so I didnt pull trigger on that
I am not sure if I will start selling them because this is a crude job and I have to learn a lot to produce professional level headers but mine works perfectly and there are no leaks
I ran one gas tank since I put these headers and slipon, and the torque has become insane, for instance I am cruising at ( 130kmph )80mph on highway and i open throttle all the way and in half a second it goes (145kmph) 90kmph
only downside I see so far - Fuel economy is a thing of past, its going less miles in one gas tank than before which I accept happily, I will get dyno to see AFR but definitely not running lean.