To connect the charge air cooler to the turbo and engine block, I used rubber air to air connectors from Moluminum along with Plastruct elbows and aluminum tubing, cut to fit and painted with Molotow chrome.
The rubber air connectors came in blue and orange, and though that’s common in real life, (orange on the hot side, blue on the cool side) I opted to paint them rubber black to better match the overall look. You can find black silicone connectors on 1:1 trucks as well.I also added the chrome rings around the connectors by using brass zip ties from CTM, painted chrome. That was one of the most tedious things I’ve done on this build, but the only option that seemed to work. Painting the recesses chrome was a failure, so CTM to the rescue.
For the exhaust exiting the turbo, I needed a flex tube, just like the real thing, in order to make the awkward curvature needed to fit between the engine block and frame. Once I had the plastic tubing bent to fit, I wrapped it in wire, and added putty between to get the look. Painted in aluminum, it works well.
I finished with adding the tubing clamps where the connections are with chrome bands made from strips of furnace tape.