Repair And Fix it

Jack the truck up on a hydraulic lift so that you can work underneath it comfortably.

Uncouple the support hangers with a welding torch or bolt cutters, which will allow you to remove the old exhaust system easily.

Detach the exhaust pipe, the muffler, the catalytic converter and any connecting pipes one by one, starting with the exhaust pipe and moving backwards through the exhaust system until you reach the Y-pipe intersection.

Check the oxygen sensor at the Y-pipe intersection. It may need to be replaced along with the rest of the upgrade, in which case, you should disconnect it.

Examine the exhaust manifold, the last part of the trucks exhaust system before the engine. If its part of the planned upgrade, you can disconnect it as well. Otherwise, leave it in place.

Install each piece of the new exhaust system, starting with the exhaust manifold and working down the line, piece by piece, until you reach the tail pipe. Each piece needs to be fitted and welded into place, and the connecting pipes fitted and sealed with the welding torch so they do not leak.

Check the tailpipe to make sure it exits from under your bumper correctly. You may need to adjust your bumper to ensure that exhaust exits the pipe cleanly. Alternatively, you can attach a turn-down tailpipe, which doesnt need an exit.

Double-check all the welds and connections so that each piece is secure. Start the trucks engine and watch for any exhaust leaks, which you should seal with the welder before you proceed.

Weld the support hangers back onto the trucks frame and lower the truck to the ground.

Remove any parts of the bike that may be blocking the exhaust system. Some models allow you to reach the exhaust system clearly, but others may have crossover pipes from other parts of the motorcycles engine obscuring it. Unscrew them using a wrench and set them aside.

Loosen all of the nuts and bolts that connect the exhaust system to the body of the motorcycle, and remove each piece one at a time. Start with the tailpipe and the muffler and work backwards along the system until you reach the head pipes. If any bolts are rusty or stuck, apply WD-40 or give them a few whacks with a hammer.

Check the revealed sections of the motorcycles exhaust system for any rust or damage. These sections are normally hidden by the exhaust system, and now is a good time to make sure they are all in good shape.

Remove the old exhaust gaskets with a wrench and install new ones for your system upgrade.

Spray the new head pipes with anti-seize and fit them into place on the bike. Tighten the retaining collars enough to hold the head pipes in place, but not so tight as to make removing them difficult. If there are any problems with the upgrade, you may need to remove them again quickly.

Spray the interior of new muffler with anti-seize and attach it to the pipe. Secure it so that it stays in place, but keep the connecting bolts fairly loose so that you can detach it or adjust it easily.

Connect the tailpipe to the assembly of the motorcycles exhaust system, if necessary.

Examine all parts of the exhaust system so that they are properly aligned and fit together as they should. Your bolts and fasteners should still be semi-loose, allowing you to make minor tweaks and ensure that every piece fits exactly the way it is supposed to.

Tighten the bolts and fasteners on the exhaust system, starting with the head pipes and moving back to the tail pipe. They should now be secured as tightly as possible.

Reconnect any of the motorcycles other components that you removed to get at the exhaust system.