Big block stroker exhaust question

That driveshaft loop is the same one I purchased from Mancini Racing. You might call them because they sell TTI products also.

Second that, I bought one there too. It`s a heavy duty piece, had great fit with stock stuff but it wouldn`t work with my replacement trans so I sold it to a member here. There`s a copy made of aluminum that weighs a fraction of the weight of this one. Weight also becomes an issue when you go to three inch pipes, especially over the axle. I have a full, x-pipe, over the axle w/tips, 3" mandrel bent system on my Barracuda and it is quite heavy! I would not be surprised if the entire system weighs over 100 pounds!