One thing I notice different from my trinity to the pipe in question is that the pipe in question appears to be a stamped pipe where as my Trinity is a hand coned. Also, the neck on mine where it welds to the silencer isn't as long.

As an FYI, I've always heard the Trinity pipe, while very loud, is one of the few pipes that will give a performance gain over stock. But it was not good quality when I bought mine. We had to cut and reweld the mounting bracket because it was not even close to fitting. We also had to trim the stinger on the inside of the pipe. There was a huge lip that I was told would hurt performance and cause a hot spot. At the end of the day with the mods we did, it turned out really nice though. Definitely wakes up the neighbors though!