2.25” or 2.5” exhaust??

With your mostly stock setup, it won't matter much. (Unless you're one of those "mine's bigger than yours!) type of guys. Haven't looked in awhile but Waldron may not be mandrel bent.

Get quotes from all 3 and go from there. If you like TTI best then get get that one. Good stuff. Whether Mancini or TTI direct? Same parts, only diff would be your credit card statement.