Positioning in the engine bay:
Run-of-the-mill Tial 38mm wastegate:
Muffler (single 3” in/out):
Some of the exhaust piping. 3” mandrel-bent, and it’s galvanized (for corrosion protection). It’s easy to weld, but you just need to be careful of the galvanized coating (inhaling the fumes can make you really sick).
Down-pipe fabrication. A 6” long flexpipe is used to isolate the exhaust from the turbo+manifold:
In the engine bay: