I had used Magnaflows in the past and was happy, but after reading good reviews on here about the Dynomax (Chris4x4), I decided to go that route. I went with the 17747 and got it for $48.34 shipped @ Street Side Auto by using a promo code MC1 (5% off). Welded in myself and was pretty happy with results. I just need to add a turn down.
Many posts on here differ in saying the exhaust tube is 2.50" or 2.25". Mine is 2.25" and thus, the 17747 is a 2.25" in/out muffler. Many of the suggested part #s on TW are for 2.5" in/out mufflers.
Now the pictures: