All good things are four :-)
Yesterday I got some mandrels from
www.mandrel-bends.com for the intake-
2" 16GA with tight CLR.
Today I did the V-band-flanges for the runners. With a groove to stay concentric and also a little groove on the other side to fix the pipe in. Only 2mm deep, but tight, so it holds there when trying out the parts. Easier to weld also.
