Along with the wastegate dump tube, this is another project that sat on the workbench taped together and waiting for welding, for a good portion of the year.
The first thing you'll probably ask, and this is the first thing my welder questioned - why not just buy one? The answer is that I simply could not find an oil catch can that I liked, and I hunted high and low. However, my persistent searching did expose me to a lot of features I wanted to incorporate, so it wasn't a complete waste of time at least. For all of the variations out there, it was proving annoyingly difficult to find all of said features in one package. Admittedly, on many an occasion, it was little nit-picky details responsible for making me pass on a catch can. We're talking instances where I wanted male AN fittings instead of female (to eliminate the need for an additional fitting between can and hose) or the provided mounting solution (stupid tabbed hose clamps). So, ultimately, I decided it would just be easier to fabricate my own, ensuring it would be tailored to my needs. Plus there is always that little added satisfaction of building it myself.