I wanted to share my recent exhaust modification because it was a long journey and it's finally over. If I can help someone else that may find themselves in a similar situation then I'll feel that I have done my duty. I hope this isn't a bore
Over the last several months I've been experimenting with the exhaust on my 2011 JGC with the 3.6L V6 trying to find alternatives to purchasing a $1000+ cat back system. Also, I wanted duals since mine came stock without. I tried chopping off the rear resonator and that was alright (probably should have just stopped there) but it wasn't duals. Then I had the bright idea to eliminate that suitcase of a muffler and straight pipe duals..simply wasn't thinking on that one lol! To avoid further wrath from my darling wife I put on a couple of cheap 18" round mufflers until I decided on a long term solution. This whole time I had been leaning towards the Magnaflow 16929 as several others here installed. I'd even been watching the Classifieds for a used one but to no avail and I wasn't desperate enough to spend $1400 which was the cheapest I'd seen. Last week I had an epiphany! As I was looking at Magnaflow's cat back I realized the muffler, resonators and x-pipe used in it were very similar to their universal products. I acted on a hunch and called Magnaflow and sure enough the components were the same.
In light of the long and probably unnecessary book I've just written above I'll finish with this. I ordered the 2 resonators (part number 12866), dual in/dual out muffler (part number 12468) and x-pipe (part number 10791) from AutoAnything.com for $348. Disclaimer, I ordered over the phone and the representative gave me 15% discount. Anyway, I took this all to my local shop and after about 3 hours but some first class work I forked out $530 for the equivalent of Magnaflow's cat back plus I have that dual exhaust I wanted
I'm working on uploading a video to YouTube for your viewing pleasure