The tightening sequence. To make sure all air leaks are controlled, it is a good idea to start the tightening process in two places. Begin by tightening the Inlet Tee at the base of the Compression Housing, then the two hose clamps that connect it to the end castings. Next, tighten the J-tubes (or heater boxes) and header. Next do the Turbo Outlet Pipe and Exhaust Outlet Pipe, and the final bolts to tighten connect the Turbo Inlet Pipe to the bottom of the Turbo Housing.