I must say I have a greater appreciation for people that fabricate manifolds, downpipes, etc...This weekend I decided to try my hand at building a manifold using the tools out of my garage at my apartment :0 . The welder I own/use is a lincoln easy mig 140. Making a 4-1 merge collector was a huge pain. The manifold is for my Mazdaspeed 3 and its just something I wanted to do especially since I wanted a top mount manifold for the car. I might consider doing one for the 335i if I can find a flange with the exhaust port rings.
I welded up the collector Friday after work and saturday morning, the fun began.
Making slow progress saturday morning
Manifold tacked into place early sunday afternoon