First off welcome to the forum, good color choice for a RAM.
I upgraded my intake with the Mopar and have been trying to sell it with no such luck.
If you are looking at doing a completely different exhaust setup (muffler back) there are some v6 RAM owners looking to upgrade to the factory dual setup. I just did a muffler and tips swap and almost had the muffler sold to a member with a v6 but he ended up getting everything for a good deal. I haven't tried selling the dual tips yet.
Hope this helps and good luck.