7 hours later and I get this far.
I never got the bumper off. So I just removed bent the bumper upwards and worked from there.
Unfortunately, Top Speed Pro 1 exhaust systems are cheap for a reason. The U-Pipe Diameter is roughly the same as the diameter of the Top Speed Muffler Pipe so they don't fit. The U-Pipe is supposed to insert into the Muffler Pipe.
I have to take it to a muffler shop to see if they can increase the diameter of the TS Exhaust so I can finish the install.